Chemistry 30 Exemplars 2009-10

8/4/2019 Chemistry 30 Exemplars 2009-10

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CHEMISTRYChemistry 30

ExemplarsItem Writing and Field Test Development Knowledge, Skill, and STS Outcomes


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F h ii, Db Hy [email protected]., Dbh Shd [email protected]., K Ms [email protected]. LAssss (780) 427-0010. T - sid Ed, di 310-0000.

Disibi: This d is psd h Ab Edi wbsi hp://di.b..

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Ab Edi, L Assss, 44 Cpi Bvd, 10044 108 S NW,Ed, Ab T5J 5E6, d is iss. A ighs svd.

Special permission is gd Alberta educators only pd, dippss d -p bsis, ps his d h d not i xpdi.

Expd i i his d shall not b pdd wih h wi pissi h igi pbish (s dis, wh ppib).


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This document outlines some o the general principles o item construction used by examdevelopers at Learner Assessment, contains the Chemistry 30 Program o Studiesoutcome statements, and includes numerous exemplars.

The ollowing document was prepared by committees o teachers rom variousjurisdictions. The teachers developed questions and identifed questions rom past

diploma examinations relating to each curricular concept. The purpose o this documentis threeold:

To provide exemplars that indicate how a particular conceptcould be assessed

To help item writers produce relevant and varied questions

To have an efcient and consistent means for classicationo items, not only in terms o content, but also in terms oskills, STS connections, expectations, and cognitive levels

Teachers using this document or item writing and feld-test development shouldunderstand that it is open-ended. I necessary, it can be supplemented or revised as eachcommittee uses it. Teachers should not eel limited to what is in this document, as it is tobe used only as a general guideline during item writing and feld-test development.


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Introduction

To begin with the end in mind means to start with a clearunderstanding o your destination.

Sph R. Cvy,The Seven Habits o Highly Eective People, 1989.

Chisy 30 Exps hv b dvpd ssis Gd 12 hs hisy iipig i s, pig sss, d dvpig ssss s hwi iy ipv sd ig d p i hisy sss.

Th s sp i dsigig iv sss is di h sp h i,h xpd s, d hd ssss h ig.

Th bjiv hs qsis is pvid xp hw pi p

d b ssssd. Th qsis i his d idd b xhsiv, b idd, h, pvid hs wih xps. Ths y s y b hs xps, hy y hs s h ssss s bi vid hh dsid ig hs b hivd.

Chisy 30 Exps wi h spi i h Chisy 30Pg Sdis. Eh is idid wih d. Th s b i h didis h g , d h sd b d idi h spi. Th pi s h i i h pg sdis. Th wigws s sd idiy h g xpis i h pg sdis:

k knowledges skillssts science, technology, &society

Example: 30-A1.1k idis h h spi is Chisy 30, i A,g 1, spi 1, d kwdg.

As gidi h gdig wi-sps qsis, Sp SdRspss i h sbj bi.

Y d dip xii-d is h Ab Edi wbsi

www.di.b..

A h h pg, ik h ikTeachers; h, d hAdditional Programs andServices hdig, ik h ikProvincial Testing. Nx ik Diploma Exams dh h spi iks isd d hDiploma Examinations hdig.


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Guidelines for Item Writing and Field-Test Building

W s gidis wh dvpig qsis i d pd valid d reliablessss . I his d, w wi y qsi s item. Ipqsis sid wh dvpig s is s ws:

Ds h i hv i vidiy? Ds h i s shig whwhi?

Wh pssib, w y ip d -wd sigs h ppy vydy hisy s d s.

... [I]t is extremely desirable to have assessment occur inthe context o students working on problems, projects, orproducts that genuinely engage them, that hold theirinterest and motivate them to do well.

Hwd Gd

Multiple Intelligences: The Theory in Practice, 1993.

I h Chisy 30 dip xiis, sis y v h i, bi is ip kp h si gg sip, is, d v. W d w is h diy i by ddig xss, iv i.Sigi digis shd b sis hgh h i, d y d idd hi shd b bsd isi vs. Wh wiig is, pvid s hii s pssib i h si bx s s h sds d hv dhgh h diss di wh h i is skig.

Share ideas and items wih s s ip dbk. Is vv hgh pgssi, d h is why i is ip sh y is s y dvp h.

Idd h wig pgs xps idiig h vis sgs hghwhih s is hv pgssd h i hy sbid i hi w

, hgh visi, hgh diig, h d-s pd.


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ORIGINAL SUBMISSION July 2, 2004

Use the ollowing inormation to answer the next question.

T (1hybz, C7H8(g)) is ip gi sv d ps

y h ip gi pds sh s TNT (ii).T b pdd dig h wig qiibi.

C7H14(g) + gy C7H8(g) + 3H2(g)

1. Wh 3.00 C7H14(g) ws idd i 1.00 L i, 1.20

H2(g) ws pdd qiibi. Di h Kc h i.

A. 0.266

B. 0.185

C. 1.15 D. 0.800

FINAL VERSION April 1, 2005


T, C7H8(g), is ip gi sv d b pdd by h

wig qiibi qi.

C7H14(g) + gy C7H8(g) + 3H2(g)

A hii pd 3.00 C7H14(g) i 1.00 L fsk. Th fsk ws h

stoppered and allowed to reach equilibrium. At equilibrium, 1.20 mol o H2(g) was

present in the ask.

1. Th v h qiibi s is

A. 0.185

B. 0.266

C. 0.800

D. 1.15

Key: B


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2. As h p h sys iss, h v Kc wi

A. ds d pds d

B. is d pds d C. ds d s d

D. is d s d

FINAL VERSION March 15, 2005


2 SO2(g) + O2(g) 2 SO3(g) + 197.8 kJ

2. I the temperature o the system at equilibrium is increased, then the value othe equilibrium constant, Kc, will i and the amount o ii willincrease.

Th s bv is pd by h ii i w

Row i ii

A. ds pds

B. ds s

C. is pds

D. is s

Key: B


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3. T is d wih ii id pd TNT (ii), pw

xpsiv. Th i qis H2SO4(q) s ys. Wih

H2SO4(q) h i wd

A. s

B. sw

C. pd TNT

D. pd ss TNT

REVIEW March 9, 2005


T is sd s pd h gi pds sh sii (TNT). T d ii id , wih h ddii ys, pd TNT.

3. Wih h ddii ys, h i wd

A. s

B. sw

C. pd ss TNT

D. pd TNT

FINAL VERSION April 13, 2005


T is sd s pd h gi pds sh sii (TNT). T d ii id wih h ddii ys pd TNT.

3. Wih h ddii ys, h wd i wd

A. s

B. sw

C. hv g H

D. hv s H


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A i hs b d-sd, dbk pvidd by sds d hs, iddii h sisis h d-s ysis, is viwd b h i is ddpb dip xii. B i pps dip xii,i is did d viwd gi, iy d xy, by i hs dpssis wkig i h hisy d.

Bw is is spi gidis hk wh bidig d ss.Primary Components to Check

Ensure that all items ft within the program o studies and that the concept hasbeen correctly categorized (or knowledge, skill, and STS components).

Balance items in terms o difculty and quantitative versus qualitative type.

Balance items to reect the program o studies. I there is duplication o aconcept, ensure that the items are addressing dierent aspects o the concept.

Check that the current data booklet values are used and that the science is accurate.

Include only plausible distractors. I the distractors are a result o a calculation,

include how each distractor is calculated.Linked items must be linked rom a multiple-choice item to a numerical-responseitem. All linked items must be identifed so that students who complete the frstitem incorrectly in a series o linked items still have a chance o completing the nextitem correctly.

All numerical-response answers must fll all our felds in the numerical-responsesection on the answer sheet (possible types o responses are 1245, 45.2, and 2.38).

I possible, do not start or end calculated numerical-response items with a zero.

Indicate the correct response or each machine-scored item and provide ascoring guide with a sample response or each written-response item.

Secondary Components to Check

Diagrams are clearly drawn and labelled. Provide a reerence or the source, ione was used.

Distractors are approximately equal in length.

Scenarios are relevant (trim out extra inormation) and include any sources used.

Scenarios consist o a minimum o three items.

How to Start

Develop a blueprint or the feld test that covers as much o the program o studies aspossible and includes a range o cognitive levels. Start by fnding the written-responsecomponent. The written-response question determines the other questions that canbe put on the feld test so that concepts are not covered more than once. Next, lookor two to three scenarios to ft your blueprint. Group and order your items/scenariosaccording to units as ollows: thermochemical changes, electrochemical changes,chemical changes o organic compounds, and chemical equilibrium ocusing onacidbase systems. Scenarios that include inormation rom more than one unitshould appear at the end o the units they cover. Fill in any remaining spots withindividual items or add items to the existing scenarios.


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UNIT ATHERMOCHEMICAL CHANGES ...........................................................................................1General Outcome 1: .................................................................................................................................1

Di d ip gy hgs i hi is ............. .............. .............. ............... ......130A1.1k ..............................................................................................................................................................1

30A1.8k ..............................................................................................................................................................1

30A1.3s ..............................................................................................................................................................1

30A1.4s ..............................................................................................................................................................1

30A1.1s ..............................................................................................................................................................3

30A1.1ss ...........................................................................................................................................................330A2.2ss ...........................................................................................................................................................3

30A2.3ss ...........................................................................................................................................................3

30A1.2k ..............................................................................................................................................................4

30A1.3k ..............................................................................................................................................................5

30A1.4s ..............................................................................................................................................................5

30A1.4k ..............................................................................................................................................................6

30A1.5k ..............................................................................................................................................................7

30A1.6k ..............................................................................................................................................................8

30A1.5k ..............................................................................................................................................................8

30D1.1k ..............................................................................................................................................................9

30D1.2k ..............................................................................................................................................................9

30D1.3k ..............................................................................................................................................................9

30A1.7k ............................................................................................................................................................10

30A1.8k ............................................................................................................................................................1130A1.9k ............................................................................................................................................................12

30A1.10k ..........................................................................................................................................................13

General Outcome 2: ...............................................................................................................................14Expi d i gy hgs i hi is ........................................................14

30A2.1k ............................................................................................................................................................14

30A2.2k ............................................................................................................................................................15

30A2.3s ............................................................................................................................................................15

30A2.2k ............................................................................................................................................................16

30A2.3k ............................................................................................................................................................17

30A2.3s ............................................................................................................................................................17

30A1.3s ............................................................................................................................................................18

30A2.3s ............................................................................................................................................................18

30A2.4k ............................................................................................................................................................19

30A2.3s ............................................................................................................................................................20

30A2.3s ............................................................................................................................................................21UNIT BELECTROCHEMICAL CHANGES ........................................................................................22

General Outcome 1: ...............................................................................................................................22Sds wi xpi h xididi is .......................................................22

30B1.1k ............................................................................................................................................................22

30B1.2k ............................................................................................................................................................24

30B1.3k ............................................................................................................................................................25

30B1.4k ............................................................................................................................................................25

30D1.2k ............................................................................................................................................................25

30D1.3k ............................................................................................................................................................25

30B1.4k ............................................................................................................................................................26

30B1.5k ............................................................................................................................................................27

30B1.1s ............................................................................................................................................................28

30B1.3s ............................................................................................................................................................28

30B1.6k ............................................................................................................................................................2930B1.7k ............................................................................................................................................................30

30B1.8k ............................................................................................................................................................32

30B1.1ss ..........................................................................................................................................................32

General Outcome 2: ...............................................................................................................................34Sds wi ppy h piips xididi hi s ............. .............. ..34

30B2.1k ............................................................................................................................................................34

30B2.1s ............................................................................................................................................................34

30B2.2k ............................................................................................................................................................37

30B2.3k ............................................................................................................................................................38

30B2.3s ............................................................................................................................................................38

30B2.3s ............................................................................................................................................................39

Chisy 30


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Chisy 30

30B2.4k ............................................................................................................................................................40

30B2.5k ............................................................................................................................................................41

30B2.6k ............................................................................................................................................................42

30B2.7k ............................................................................................................................................................43

30B2.8k ............................................................................................................................................................44

30B2.2ss ..........................................................................................................................................................45

UNIT CCHEMICAL CHANGES OF ORGANIC COMPOUNDS .....................................................47

General Outcome 1: ...............................................................................................................................47Sds wi xp gi pds s ............. .............. ............... ....47

30C1.1k ............................................................................................................................................................47

30C1.2k ............................................................................................................................................................48

30C1.3k ............................................................................................................................................................48

30C1.1ss ..........................................................................................................................................................48

30C2.3ss ..........................................................................................................................................................48

30C1.3k ............................................................................................................................................................49

30C1.5k ............................................................................................................................................................50

30A1.6k ............................................................................................................................................................51

30C1.3s ............................................................................................................................................................52

30C1.4k ............................................................................................................................................................53

30C1.5k ............................................................................................................................................................55

30C1.6k ............................................................................................................................................................57

30C1.3k ............................................................................................................................................................58

30C1.3s ............................................................................................................................................................58

30C1.7k ............................................................................................................................................................59

30-C1.3k.............................................................................................................................................................59

30C1.3s ............................................................................................................................................................60

General Outcome 2: ...............................................................................................................................61Sds wi dsib hi is gi pds .............. .............. .............. ..............61

30C2.1k ............................................................................................................................................................61

30C2.2k ............................................................................................................................................................62

30C2.1s ............................................................................................................................................................62

30C2.3k ............................................................................................................................................................64

30C2.4k ............................................................................................................................................................66

30C2.3k ............................................................................................................................................................67

30C2.1ss ..........................................................................................................................................................67

UNIT DCHEMICAL EQUILIBRIUM FOCUSING ON ACIDBASE SYSTEMS ...........................68

General Outcome 1: ...............................................................................................................................68Sds wi xpi h h is b ppsig is i hi qiibi syss .....68

30D1.1k ............................................................................................................................................................68

30D1.2k ............................................................................................................................................................69

30-D1.3k ............................................................................................................................................................69

30D1.3k ............................................................................................................................................................70

30D1.1s ............................................................................................................................................................71

30D1.4k ............................................................................................................................................................72

30D1.5k ............................................................................................................................................................73

30D1.6k ............................................................................................................................................................74

30D1.7k ............................................................................................................................................................75

30D1.8k ............................................................................................................................................................76

30D1.3k ............................................................................................................................................................76

30D1.3s ............................................................................................................................................................77

General Outcome 2: ...............................................................................................................................79Sds wi di qiiv iships i sip qiibi syss ................ ..............79

30D2.1k ............................................................................................................................................................79

30D2.2k ............................................................................................................................................................80

30D2.3k ............................................................................................................................................................82

30D1.4k ............................................................................................................................................................83

30B1.2k ............................................................................................................................................................83

30B1.4k ............................................................................................................................................................83

30D1.3s ............................................................................................................................................................83

30D2.3s ............................................................................................................................................................83


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Unit AThermochemical Changes

General Outcome 1:

Determine and interpret energy changes in chemical reactions

Knowledge30A1.1k R h ppii Q = mct h ysis h s.

Knowledge30A1.8k Us iy d di h hpy hgs i hi

is.


2 CH3OH() + 3 O2(g) 2 CO2(g) + 4 H2O(g) H = 1 275.8 kJ

1. Th h h s b bd is h p 250.0 g w 20.0 C 35.0 C is

A. 6.16 103

B. 1.23 102

*C. 2.46 102

D. 2.46 101

This question also applies to:

Skill30A1.3s yz d d ppy hi d p ds dvp

d ssss pssib sis

compare energy changes associated with a variety o chemical reactions

through the analysis o data and energy diagrams

Skill30A1.4s wk bivy i ddssig pbs d ppy h skis d

vis si i iig ii d ids d issssig ss

use appropriate International System o Units (SI) notation, undamental

and derived units and signifcant digits

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Thhi Chgs


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Calorimetry Experiment Data

1 Mass change o ethanol

2 Mass o aluminium calorimeter

3 Mass o aluminium calorimeter and water

4 Initial temperature o aluminium calorimeter

5 Maximum temperature change o ethanol

6 Maximum temperature change o aluminium calorimeter and water

2. Th iy xpi d qid di h hpy

bsi h , , , d .

Key: 1236


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Thhi Chgs


Tw s h b sd i pig svs gsi (ss p )d pp.

3. Design iy xpi h wd w y hs h bs s hig w pig sv.

Y sps shd id

a detailed procedure

identifcation o the controlled, manipulated, and responding variables

two reasons to support your choice o the best uel


Skill30A1.1s qsis b bsvd iships d p ivsigis

qsis, ids, pbs d isss

design a method to compare the molar enthalpy change when burning

two or more uels (e.g., octane, propane, ethanol, and historic uels such

as seal or whale oil), identiying and controlling major variables.

Science, Technology, and Society30A1.1ss xpi h h g hgy is pvid sis pi

pbs

provide examples o personal reliance on the chemical potential energy

o matter, such as the use o ossil uels

identiy ways to use energy more efciently

30A2.2ss xpi h h pppiss, isks d bs hgis d b ssssd h pi ppii viy pspivs,idig ssibiiy

assess, qualitatively, the risks and benefts o relying on ossil uels as

energy sources

30A2.3ss xpi h h pds hgy dvis, syss d

psss h giv ds; hwv, hs pds svpbs

evaluate the economic and environmental impacts o dierent uels by

relating carbon dioxide emissions and the heat content o a uel


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Knowledge30A1.2k Expi, i g wy, hw sd gy i h hi bds

hydbs igid h S.

4. During photosynthesis, energy that originated rom the i is convertedto ii energy and stored in chemical bonds.


Row i ii

A. S igh

*B. S hi

C. p igh

D. p hi


Processes

1 Combustion

2 Photosynthesis

3 Bacterial decay4 Energy rom the Sun

5. F h i h is v s s bi , h d

h psss isd bv is , , , d .

Key: 4231


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Thhi Chgs

Knowledge30A1.3k D hpy d hpy hi is.


Fuel Molar Enthalpy o Combustion

Methane 802.5 kJ/mol

Ethane 1 428.4 kJ/mol

Butane 2 657.3 kJ/mol

Octane 5 074.1 kJ/mol

6. A ipi h ppis h d i h b bv is h h g h

b b s i ssi , h

A. w h gy sd i h

B. g h sgh h v bd

*C. g h gy sd dig bsi

D. w h s xyg qid p bsi

7. I 44.7 kJ gy is sd wh 1.65 g h, CH3CHO(), is bdi i, h h hpy bsi h is

A. 1.67 kJ/

B. 2.71 101 kJ/

C. 7.38 101 kJ/

*D. 1.19 103 kJ/


Skill30A1.4s wk bivy i ddssig pbs d ppy h skis dvis si i iig ii d ids d issssig ss

use appropriate International System o Units (SI) notation, undamental

and derived units and signifcant digits


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Knowledge30A1.4k Wi bd qis hi is h id gy

hgs.

8. Whih h wig qis pss h bd hi qi hdpsii w d h gy s dig h i?

A. H2(g) + 21 O2(g) H2O() + 285.8 kJ

B. H2O() H2(g) + O2(g) + 285.8 kJ

C. 2 H2O() + 285.8 kJ 2 H2(g) + O2(g)

*D. H2O() + 285.8 kJ H2(g) + 21 O2(g)

9. Wh sd s i bis, h bs iy h ssis. Th bd qi, idig h pppi hpy hg hbsi h, is

A. C2H5OH() + 3 O2(g) 2 CO2(g) + 3 H2O(g) H = +1 234.8 kJ

*B. C2H5OH() + 3 O2(g) 2 CO2(g) + 3 H2O(g) H = 1 234.8 kJ

C. C2H5OH() 2 C(s) + 3 H2(g) + 21 O2(g) H = +277.6 kJ

D. C2H5OH() 2 C(s) + 3H2(g) + 21 O2(g) H = 277.6 kJ


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Knowledge30A1.5k Us d ip Hi i d gy

hgs i hi is.

10. Th gy sd wh 0.500 AgI(s) is d is sis kJ.

Key: 30.9


Th bsi ss b psd by h wig qi.

C12H22O11(s) + 12 O2(g) 12 CO2(g) + 11 H2O(g) H = 5 155.7 kJ

11. I 1.00 g o sucrose reacts as represented by the equation above, then io energy is ii the surroundings.


Row i ii

A. 15.1 kJ bsbd

*B. 15.1 kJ sd C. 0.066 4 kJ bsbd

D. 0.066 4 kJ sd


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Thhi Chgs

Knowledge30A1.6k Pdi h hpy hg hi qis sig sdd

hpis i.

Use the ollowing inormation to answer the next two questions.

Dispsb ighs i b gs whih dgs bsi, s psdby h wig qi.

2 C4H10(g) + 13 O2(g) 8 CO2(g) + 10 H2O(g)

12. Wh sd s i bis, h bs iy h ssis. Th bd qi, idig h pppi hpy hg hbsi h, is

*A. 2 657.3 kJ/

B. 2 877.3 kJ/

C. 5 314.6 kJ/

D. 5 754.6 kJ/

Use your recorded answer romMultiple Choice 12 to answerNumerical Response 13.*

13. Th hpy hg h bsi 1.00 g b gs is __________ kJ.

*You can receive marks or this question even i the previous question was answered incorrectly.

Key: 91.3 or 91.4 (i uncleared calculator is used or the calculation)

Acceptable Responses or Linked Item 13:

*I MC12 is A, h NR13 is 45.7* Note: Ab Edi qis sds y ddsws ikd qsi h.

*Wihi qsi, dig s y h sw (s bi ).

B, h NR13 is 49.5

C, h NR13 is 91.4

D, h NR13 is 99.00


Knowledge30A1.5k


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Nig dixid gs is xi, ddish bw gs. A high ps ibi gis, ig gs d xyg gs i h i pd igdixid gs, s psd by h wig qi.

N2(g) + 2 O2(g) 2 NO2(g)

14. Analyze h pdi ig dixid gs i s gy d qiibi.Identiy w hisis h i i s gy d w hisis h i i s qiibi.

Y sps shd id

an enthalpy calculation per mole o nitrogen dioxide gas

an explanation o the two characteristics in terms o energy you have identiied

an explanation o the two characteristics in terms o equilibrium you have

identiied

This question can also apply to:

Knowledge30D1.1k30D1.2k30D1.3k


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Thhi Chgs

Knowledge30A1.7k Expi d s Hss w gy hgs i

sis is.


C3H6(g) + 29 O2(g) 3 CO2(g) + 3 H2O() H = 1 959.2 kJ

C(s) + O2(g) CO2(g) H = 393.5 kJ

2 H2(g) + O2(g) 2 H2O() H = 571.6 kJ

15. Th hpy i ypp, 3 C(s) + 3 H2(g) C3H6(g),is +/__________ kJ.

Key: 78.7


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Thhi Chgs

Knowledge30A1.8k Us iy d di h hpy hgs i hi

is.


A sd ss ii i di h hpy si sid i i. Th sd sss h h i ih gis ss h dig h xpi; h h dsiy d spi h piy h si h s s hs w; d h h ss h si is 150.00 g. Th d w d d dd i h wig b.

Mss i i 25.45 g

Mss i i d s 175.45 g

Mss i i 1.68 g

Iii p i d s 22.30 C

Fi p i d s 20.98 C

16. Th hpy si i i i h iyxpi is __________ kJ/.

Key: 39.5


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Thhi Chgs

Knowledge30A1.9k Idiy h iqid w d b dixid gs s i

phsyhsis d pds spii d h gss wd b dixid gs h pds hydb bsi i p sys.

17. Whih h wig sbss is pdd dig h bsi ibis d is s pdd dig spii?

A. NO2(g)

B. SO2(g)

*C. CO2(g)

D. O2(g)

18. The products o photosynthesis are i , and the products o hydrocarboncombustion are ii .


Row i ii

A. CO2(g) d H2O() CO2(g) d H2O(g)

B. CO2(g) d H2O() CO2(g) d H2O()

*C. C6H12O6(s) d O2(g) CO2(g) d H2O(g)

D. C6H12O6(s) d O2(g) CO2(g) d H2O()


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Thhi Chgs

Knowledge30A1.10k Cssiy hi is s dhi xhi, idig hs

h psss phsyhsis, spii d hydbbsi.

19. O s h d xpi why dyi ss g qiy gywh i xpds is h h i is

A. dhi, d h pds hv pi gy h h s

B. dhi, d h s hv pi gy h h pds

C. xhi, d h pds hv pi gy h h s

*D. xhi, d h s hv pi gy h h pds


Type o Reaction

1 Endothermic

2 Exothermic

20. Mh h yp i bd bv wih h is giv bw.

Photosynthesis (Rd i h frst )

Cellular respiration (Rd i h second )

Formation o glucose (Rd i h third )

Combustion o propane (Rd i h ourth )

Key: 1222


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Thhi Chgs

General Outcome 2:

Explain and communicate energy changes in chemical reactions

Knowledge30A2.1k D ivi gy s h gy bi h s b v

hi i .


Potential Energy Diagram

21. The energy barrier that must be overcome or the orward reaction to occur is

called the i , and in the diagram above, it is the dierencebetween ii .


Row i ii

A. hpy hg I d II

B. hpy hg I d III

*C. ivi gy I d II

D. ivi gy I d III


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C3H8(g) + 6 H2O(g) 3 CO2(g) + 10 H2(g)

22. Explain hw h i psd by h qi bv bh qis gy

d ss gy h sdigs.

Y sps shd id

an explanation o the energy requirements or the reaction

a molar enthalpy calculation in kJ/mol

an explanation o the energy changes that occur during the reaction

This question could also apply to:

Knowledge

30A2.2k


d ssss pssib sis

draw and interpret enthalpy diagrams or chemical reactions


27/94

16Ui A

Thhi Chgs

Knowledge30A2.2k Expi h gy hgs h dig hi is, ig

bds bkig d ig d hgs i pi d kiigy.

23. The energy changes that occur when propane undergoes combustion areprimarily due to changes in i energy resulting rom ii .


Row i ii

*A. pi g bds

B. pi is i i

C. kii g bds

D. kii is i i


N(s) +2

1 H2(g) + C(s) + 23 O2(g) NHCO3(s) + 947.7 kJ

24. In the reaction represented by the equation above, energy is i thesurroundings because the bonds in the products contain ii energy thanthe reactants.


Row i ii

A. bsbd pi

B. bsbd kii

*C. sd ss pi

D. sd ss kii


28/94

17Ui A

Thhi Chgs

Knowledge30A2.3k Ayz d b gy digs hi i, idig

s, pds, hpy hg d ivi gy.


Combustion o Methane Gas

25. Adig h dig bv, h hpy hg h bsi 1.00 h gs is

A. dhi d psd by giv Hv

B. dhi d psd by psiiv Hv

*C. xhi d psd by giv Hv

D. xhi d psd by psiiv Hv


Skill

30A2.3s yz d d ppy hi d p ds dvpd ssss pssib sis



29/94

18Ui A

Thhi Chgs


Th wig dig iss h i hpis V(s), C2(g), d si hi pds.

Enthalpies or the Formation o Vanadium Chlorides

26. Th gy bsbd wh 0.350 VC4() dpss VC2(s) dC2(g) is __________ kJ.

Key: 41.1


Skill


compare energy changes associated with a variety o chemical reactions

through the analysis o data and energy diagrams




30/94

19Ui A

Thhi Chgs

Knowledge30A2.4k Expi h yss is i s by pvidig

phwys hgs, wih ig h gy ivvd;e.g., enzymes in living systems.


Th dpsii h pssi h sid pssi hid d xyggs s s i h ps sid gs(IV) xid,s psd by h wig qi.

2 KCO3(s) 2 KC(s) + 3 O2(g)

27. Wh gs(IV) xid is sd s ys, h hpy hg hdpsii pssi h

*A. sys h s

B. bs xhi

C. bs dhi

D. hgs xhi dhi


31/94

20Ui A

Thhi Chgs


O h bypds h kig pss sd i-ig ps is hy,C2H2(g). I h ps pdi ys, h hy s h dh, s psd by h wig qi.

2 C2H2(g) + 3H2(g) C2H4(g) + C2H6(g) + 486.4 kJ

28. Whih h wig gy digs pss h gy hgs bh hyzd d yzd is?



d ssss pssib sis



32/94

21Ui A

Thhi Chgs


d ssss pssib sis

explain the discrepancy between the theoretical and actual efciency o

a thermal energy conversion system


I iy xpi, sd d h h hi v h hpy bsi h ws high h h v h sh bid ih by.

29. Whih h wig xpis d h dispy bw hxpi v d h hi v h hpy bsi

h?

A. Th ss h ws w h sd.

B. Th p h i s ws high h sd.

C. Th iii p h i s ws w h sd.

*D. Th ip bsi h pdd ix CO(g) dCO2(g) i h i.


33/94

22Ui B

Ehi Chgs

Unit BElectrochemical Changes

General Outcome 1:

Students will explain the nature of oxidationreduction reactions

Knowledge30B1.1k D xidi d di piy d hiy.


Statements

I Sulur orms stable ions by gaining electrons.

II Magnesium orms stable ions by losing electrons.

III The oxidation number o iron changes rom +3 to +2.

IV The oxidation number o oxygen changes rom 2 to 1.

30. Th ss bd bv h xidi

A. I d III

B. I d IV

C. II d III

*D. II d IV


34/94

23Ui B

Ehi Chgs


Lhig hgy is sd i h iig d ig pp . I h ssp h hig pss, d qs si id fws hgh pp dpsi. Sid pp(II) xid s wih si id s psd by

h wig ii qi.CO(s) + 2 H+(q) C2+(q) + H2O()

Th sig si h is pp(II) is is sd yi wh p pp is pdd.

31. I h i psd by h qi bv, pp dgs

A. di y

B. xidi y

C. bh xidi d di

*D. ih xidi di

32. Whih h wig ss is pi dii h dgig di?

A. I dgs i i wih xyg gs.

B. Mgsi iss i ss wh hd i i.

C. I(III) hydxid s wih xyg i h i ii pds.

*D. Zi sd is sd i h ps xyg gs pd zi .


35/94

24Ui B

Ehi Chgs

Knowledge30B1.2k D xidizig g, dig g, xidi b, h-i,

disppii.


2 H2S(g) + 3O2(g) 2 SO2(g) + 2 H2O(g)

33. In the reaction represented by the equation above, oxygen acts as the iagent, and the oxidation number o the sulur atom increases by ii .


Row i ii

A. xidizig 2

*B. xidizig 6

C. dig 2

D. dig 6

34. Whih h wig qis pss disppii i?

A. 2 N(s) + I2(s) 2 NI(s)

B. 2 F2(g) + O2(g) 2 OF2(g)

*C. C2(q) + H2O() HOC(q) + H+(q) + C(q)

D. 2 NH3(q) + NOC(q) N2H4(q) + NC(q) + H2O()


36/94

25Ui B

Ehi Chgs

Knowledge30B1.3k Dii bw dx is d h is, sig h-

is d/ xidi bs.

35. Whih h wig qis pss dx i?

A. NOH(q) + HNO3(q) NNO3(q) + H2O()

*B. 2 AgNO3(q) + C(s) 2 Ag(s) + C(NO3)2(q)

C. H2SO4(q) + 2 KOH(q) K2SO4(q) + 2 H2O()

D. CC2(q) + B(OH)2(q) C(OH)2(q) + BC2(q)


Th qiibi ss w is 900 K psd by hwig qis.

Equation I 2 H2S(g) + 3 O2(g) 2 SO2(g) + 2H2O(g) + 1 036.0 kJ Kc = 377

Equation II 2 SO2(g) + O2(g) 2 SO3(g) + 197.8 kJ Kc = 13

36. Compare h w is psd by h qis bv i s dxd qiibi. Identiy siiiy di i s dx d siiiy di i s qiibi.

Y sps shd id

an explanation o the similarity and/or dierence you have identifed in terms o

redox

an explanation o the similarity and/or dierence you have identifed in terms o

equilibrium

This question can also apply to:

Knowledge

30B1.4k30D1.2k30D1.3k


37/94

26Ui B

Ehi Chgs

Knowledge30B1.4k Idiy s, xidizig gs d dig gs i dx

is h i vydy i, i bh ivig syss (e.g., cellularrespiration, photosynthesis) d ivig syss; i.., si.


Cellular Respiration

C6H12O6(s) + 6 O2(g) 6 CO2(g) + 6 H2O()

37. Dig spii, h xidizig g is

*A. O2(g)

B. CO2(g)

C. H2O()

D. C6H12O6(s)


Metallurgical Processes

I 2 Al2O3(s) 4 Al(s) + 3 O2(g)

II 2 PbO(s) + C(s) 2 Pb(s) + CO2(g)

III Zn(s) + 2 HCl(aq) ZnCl2(aq) + H2(g)

IV Cu(s) + 4 HNO3(aq) Cu(NO3)2(aq) + 2 NO2(g) + 2 H2O(l)

38. Th gi psss i whih h ss s

A. I d II

B. I d III C. II d IV

*D. III d IV


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27Ui B

Ehi Chgs

Knowledge30B1.5k Cp h iv sghs xidizig d dig gs, sig

pii d.


B2+(q) Cd2+(q) R2+(q) V2+(q)

B(s)

Cd(s)

R(s)

V(s)

vid sps i

sps i

39. Wh isd i d sgs wks, h xidizig gs

A. R(s), B(s), V(s), Cd(s)

B. Cd(s), V(s), B(s), R(s)

C. R2+(q), B2+(q), V2+(q), Cd2+(q)

*D. Cd2+(q), V2+(q), B2+(q), R2+(q)


A sd d h d bw.

M2+(q) + 2 M(s) E = +1.21 V

Q+(q) + Q(s) E = +1.03 V

Z3+(q) + 3 Z(s) E = 0.21 V

X2(q) + 2 2 X(q) E = 1.23 V

40. F h sds d, h sgs dig g is

A. M2+(q)

*B. X(q)

C. X2(q)

D. M(s)


39/94

28Ui B

Ehi Chgs


A sd ws s i(II) hid si i i d ih i,zi, ii, pp.

41. Design xpi h wi b y di whih yp ii, zi, ii, ppis bs s i s iviy sig i(II) hid si.

Y sps shd id

an explanation and rationale to support your choice

relevant hal-reaction equations

two other criteria you would use, other than reactivity, to determine the best

storage container


Skill30B1.1s qsis b bsvd iships d p ivsigis

qsis, ids, pbs d isss

design an experiment to determine the reactivity o various metals

Skill30B1.3s yz d d ppy hi d p ds dvp

d ssss pssib sis.

evaluate data rom an experiment to derive a simple reduction table

interpret patterns and trends in data derived rom redox reactions

identiy the limitations o data collected rom redox experiments


40/94

29Ui B

Ehi Chgs

Knowledge30B1.6k Pdi h spiy dx i, bsd sdd di

pis, d p h pdiis xpi ss.

42. Whih h wig qis pss sps dx i?

A. Z2+(q) + Pb(s) Z(s) + Pb2+(q)

*B. S4+(q) + F(s) S2+(q) + F2+(q)

C. Z2+(q) + C(s) Z(s) + C2+(q)

D. O2(g) + 2 H2O() + 4 B(q) 2 B2() + 4 OH

(q)

43. Th dig g h v 1.0 /L S4+(q) is S2+(q)

b not 1.0 /L S2+(q) S(s) is

A. C(s)

*B. Pb(s)

C. Ni(s)

D. C(s)


41/94

30Ui B

Ehi Chgs

Knowledge30B1.7k Wi d b qis dx is i idi d

sis by

using hal-reaction equations obtained rom a standard reduction

potential table

developing simple hal-reaction equations rom inormation provided

about redox changes

assigning oxidation numbers, where appropriate, to the species

undergoing chemical change


OC(q) + I(q) + H+(q) I2(q) + C(q) + H2O()

44. When the equation above is balanced under acidic conditions, the whole numbercoefcient or H+(aq) is i and the amount o electrons transerredis ii .


Row i ii

A. 1 1

B. 1 2

C. 2 1

*D. 2 2


42/94

31Ui B

Ehi Chgs


Chi gs d qs sdi hyps s psd by h wigunbalanced qi.

C2(g) + S2O32(q) + H2O() SO4

2(q) + H+(q) + C(q)

45. Th bd xidi h-i qi is

A. C2(g) + 2 2 C(q)

B. S2O32(q) + H2O() SO4

2(q) + 2 H+(q) + 4

*C. S2O32(q) + 5 H2O() 2 SO4

2(q) + 10 H+(q) + 8

D. S2O32(q) + 5 H2O() + 4

2 SO42(q) + 10 H+(q)


43/94

32Ui B

Ehi Chgs

Knowledge30B1.8k P is di qiis sbss ivvd i

dx iis.

46. I is siy xidizd F2+(q) by idid pssi dihsi dig dx ii.

a. Write h ii qi his pss d determine h ss i xidizd by 50.0 L 0.250 /L idid K2C2O7(q) si

(3 marks)

b. Oxidi i is dsib i i h vi. Th sv hds pv si i. Describe hs hdsd explain hw his hd pvs i dig. (2 marks)


Science, Technology, and Society30B1.1ss xpi hw h g hgy is pvid sis pi

pbs

describe the methods and devices used to prevent corrosion; i.e., physical

coatings and cathodic protection


44/94

33Ui B

Ehi Chgs


A sddizd 0.125 /L pssi dih si ws sd i

20.0 L sps idid S2+(q). Th d is psd i h wig b.

Titration Data

Trial I II III

Final burette volume (mL) 27.2 44.5 30.1

Initial burette volume (mL) 10.1 27.2 12.9

47. Th pssi dih si qid p his ii is

A. 8.33 104

B. 6.45 103

C. 2.50 103

*D. 2.15 103

Use your recorded answer romMultiple Choice 47to answerNumerical Response 48.*

48. Th i S2+(q) i h sp sd i h ii, xpssd isii i, is a.bc 10d/L. Th vs

a, b, c, dd , , , d .

*You can receive marks or this question even i the previous question was answered incorrectly.

Key: 3231

Acceptable Responses or Linked Item 48:

*I MC47 is A, h NR48 is 1251

B, h NR48 is 9681

C, h NR48 is 3751

D, h NR48 is 3231*


45/94

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Ehi Chgs

General Outcome 2:

Students will apply the principles of oxidationreduction to

electrochemical cells

Knowledge30B2.1k D d, hd, i, i, s bidg/ps p, y,

x ii, pw sppy, vi d yi .

49. Th d hi is h si whih

*A. xidi s

B. is gi s

C. is d h d

D. s d h d

50. Illustrate d describe wkig vi h ips sdd ikh- d hs pi g h 1.00 V.

Y sps shd id

relevant balanced hal-reaction equations and an Ecell calculation

a labelled cell diagram

evidence that a reaction has occurred in each hal-cell

This question also applies to

Skill30B2.1s qsis b bsvd iships d p ivsigis

qsis, ids, pbs d isss.

design an experiment, including a labelled diagram, to test predictions

regarding spontaneity, products and the standard cell potential or

reactions occurring in electrochemical cells


46/94

35Ui B

Ehi Chgs


Electrochemical Cell

51. Mh h bs i h dig bv wih hi pppi bs giv bw.

Anode (Rd i h frst )

Cathode (Rd i h second )

Anion movement (Rd i h third )

Electron movement (Rd i h ourth )

Key: 4351


47/94

36Ui B

Ehi Chgs



52. Whih h wig ws idis h yp hi i hdig bv d dsibs wh hpps dig is pi?

Row Type o Cell What Happens

A. Vi Es v wd h hd

B. Vi I(q) vs wd h hd

*C. Eyi Es v wd h hd

D. Eyi I(q) vs wd h hd


48/94

37Ui B

Ehi Chgs

Knowledge30B2.2k Idiy h siiiis d dis bw h pi vi

d h yi .

53. A yi dis vi i h h yi

*A. is sps

B. ss iiy

C. hs psiivE v

D. hs d d hd


Statements About Electrochemical Cells

1 Oxidation occurs at the anode.

2 The oxidizing agent reacts at the cathode.

3 Cations move through the wire to the cathode.

4 Cations move through the electrolyte to the cathode.

5 Electrons move through the wire to the cathode.

6 Electrical energy is converted to chemical energy.

7 Chemical energy is converted to electrical energy.

54. Th ss bd bv h ppy bh yi s d vi s

, , , d .

Key: 1245


49/94

38Ui B

Ehi Chgs

Knowledge30B2.3k Pdi d wi h h-i qi h s h d i

hi .



55. The reduction hal-reaction that occurs during the operation o the electrochemical cell

represented in the diagram above is i , and this reaction occurs at the ii .


Row i ii

A. C2+(q) + 2 C(s) d

*B. C2+(q) + 2 C(s) hd

C. Z2+(q) + 2 Z(s) d

D. Z2+(q) + 2 Z(s) hd


Skill30B2.3s yz d d ppy hi d p ds dvp d

ssss pssib sis

identiy the products o electrochemical cells

compare predictions with observations o electrochemical cells


50/94

39Ui B

Ehi Chgs


Vi s sd s pb ss i gy. O ish hgb ikdi .

NickelCadmium Cell

Th qi psig h dishg h ikdi is

NiO2(s) + Cd(s) + 2 H2O() Cd(OH)2(s) + Ni(OH)2(s)

56. Th h-i h s h d dig h dishg hikdi is

*A. Cd(s) + 2 OH(q) Cd(OH)2(s) + 2

B. Cd(s) + 2 OH(q) + 2 Cd(OH)2(s)

C. NiO2(s) + 2 H2O() + 2 Ni(OH)2(s) + 2 OH

(q)

D. NiO2(s) + 2 H2O() Ni(OH)2(s) + 2 OH(q) + 2


Skill

30B2.3s yz d d ppy hi d p ds dvpd ssss pssib sis

identiy the products o electrochemical cells

compare predictions with observations o electrochemical cells


51/94

40Ui B

Ehi Chgs

Knowledge30B2.4k Rgiz h pdid is d wys ; e.g., the

production o chlorine gas rom the electrolysis o brine.


Pdid is d wys wh id i by.

57. a. Identiy d describe whih y s i pdid i ig. (2 marks)

b. Write h ii qi d h pi i hs whih ws pdid. (3 marks)


52/94

41Ui B

Ehi Chgs

Knowledge30B2.5k Expi h h vs sdd di pi iv

0 vs, s s h hydg d sdd diis.

58. F h sdd h-, h di h-i qi di pi

A. H2(g) 2 H+(q) + 2 E = 0.00 V

*B. 2 H+(q) + 2 H2(g) E = 0.00 V

C. 2 H2O() + 2 H2(g) + 2 OH

(q) E = 0.83 V

D. H2(g) + 2 OH(q) 2 H2O() + 2

E = +0.83 V

59. I h sdd idi h- is hs s h h- isd hhydg h , h h pi sivik is+/__________ V.

Key: 1.06


53/94

42Ui B

Ehi Chgs

Knowledge30B2.6k C h sdd pi hi s.


2 Ag+(q) + Z(s) 2 Ag(s) + Z2+(q)

60. Th pi h dx i psd by h qi bv is

A. +0.04 V

*B. +0.84 V

C. +1.56 V

D. +2.36 V



61. Th pi h hi i h dig bvis __________ V.

Key: 1.33


54/94

43Ui B

Ehi Chgs

Knowledge30B2.7k Pdi h spiy spiy dx is, bsd

sdd pi, d h iv psiis h-i qis sdd di pi b.


A sd sd w sdd hi s sig Pb2+(q) d

Ni2+(q). I bh s Pb(s) d ws pd i h Pb2+(q) si. I h

s Ni(s) d ws pd i h Ni2+(q) si. I h sd

i C(s) d ws pd i h Ni2+(q) si isd h Ni(s) d.

62. Whih h wig ss dsibs wh s i h ?

A. I bh s pw s is dd.

B. I bh s sps i s d Pb(s) is pdd.

C. I h s Ni(s) is pdd, d i h sd pw s isdd.

*D. I h s h i is sps, d i h sd h iis sps.


55/94

44Ui B

Ehi Chgs

Knowledge30B2.8k C ss, s, d i i sig vi d yi

s by ppyig Fdys w d sihiy.


Th di h-i HH yi is psd by hwig qi.

A3+() + 3 A()

63. I 10.0 A is ppid 5.00 h h HH yi ,h h s sd is

A. 5.60

*B. 1.87

C. 6.22 101

D. 5.18 104


A H-H yi is sd pd ii

ii xid, s psd by h wig sipid qi.

2 A2O3() 4 A() + 3 O2(g)

64. I h H-H yi , h i qid h p

5.55 103 A pd 20.0 kg ii is __________ h.

Key: 10.7 or 10.8 (dpdig b di ps id digidi sps)


56/94

45Ui B

Ehi Chgs

Science, Technology, and Society30B2.2ss dsib si d hgy ppiis h hv dvpd i

sps h d vi ds

investigate the use o technology, such as galvanism, metallurgy,

magnesium coupling, painting, cathodic protection, to solve practical

problems related to corrosion


A pi py s psi p iig s pis gsi.Th p is py wppd d i pips h wi b bid dgd.

65. Explain i hi s h pps(s) h p h p.

Y sps shd id

an explanation o the corrosion o iron

an explanation o how the plastic tape and magnesium pieces prevent the corrosion

o iron

relevant hal-reaction equations


57/94

46Ui B

Ehi Chgs


Hydgxyg s hv b sd ys i sp d yi s-s pw ps g iiy. Nw, s gvs dpis wkig gh p his yp bi s,

d xpis y big dd wih pi pyps. Adig hydgxyg is shw bw.

HydrogenOxygen Fuel Cell

66. F gi pspiv, s why hydgxyg s shdnot b sd pw bis is h

*A. hydg b pdd hgh h ysis sw by sigh gy pdd big ssi s

B. s pwd by hydgxyg wd b p 30%

i h s pwd by gsi

C. w vp is h piy by-pd h

D. xyg is diy vib h sph


58/94

47

Unit CChemical Changes of Organic Compounds

General Outcome 1:

Students will explore organic compounds as a common form of matter

Knowledge30C1.1k D gi pds s pds iig b, gizig

igi xpis sh s bs, yids, bids d xids b.

67. Whih h wig hi pds is not sidd gi pd?

A. C2H5COOCH3()

B. C6H5COOH(s) C. CH3CH2OH()

D. NH4CN(s)


Chemical Compounds

1 CO2(g) 5 C(OH)2(s)

2 CH3OH() 6 HCN(g)

3 H2CO3(q) 7 CH3COOCH3(q)

4 CCH3() 8 HCOOH()

68. Th hi pds bd bv h ps gi pds

, , , d .

Key: 2478

Ui CChi Chgs

Ogi Cpds


59/94

48

Knowledge30C1.2k Idiy d dsib sigi gi pds i diy i,

dsig gizd kwdg hi igis d ppiis;e.g., methane, methanol, ethane, ethanol, ethanoic acid, propane, benzene,octane, glucose, polyethylene.


Eh d h gi pds y sd i idsy.

69. a. Draw h s digs h d h, d compare h wdigs by idiyig siiiy d di. (3 marks)

b. Identiy h y sd gi pd h h h h. Describe h igi d ppii his pd. (2 marks)


Knowledge30C1.3k

Science, Technology, and Society30C1.1ss xpi hw si d hgy dvpd si ds

d xpd h pbiiy

describe where organic compounds are used in processes and commonproducts, such as in hydrogenation to produce margarine and esters used

as avouring agents

Science, Technology, and Society30C2.3ss xpi hw si d hgy hv bh idd d idd

sqs hs d h vi

assess the positive and negative eects o various reactions involvingorganic compounds, relating these processes to quality o lie andpotential health and environmental issues, e.g.,

burning ossil uels and climate change

production o pharmaceuticals and oods

byproducts (CO2

, dioxins) o common reactions

recycling o plastics

impact o chlorofuorocarbons (CFCs) and hydrochlorofuorocarbons(HCFCs) on the ozone layer

transats in the diet

evaluate the implications o the development o nanoscience andnanotechnology, or application in the petrochemical industry and themedical sciences, on society and the environment

Ui CChi Chgs

Ogi Cpds


60/94

49

Knowledge30C1.3k N d dw s, dsd s d i digs d

s, sig Ii Ui P d Appid Chisy(IUPAC) gidis, sd d sd iphi(idig yi) d i b pds.

containing up to 10 carbon atoms in the parent chain

(e.g., pentane;3-ethyl-2,4-dimethylpentane) or cyclic structure (e.g., cyclopentane)

containing only one type o a unctional group (with multiple bonds

categorized as a unctional group; e.g., pent-2-ene), including simple

halogenated hydrocarbons (e.g., 2-chloropentane), alcohols (e.g., pentan-

2-ol), carboxylic acids (e.g., pentanoic acid) and esters (e.g., methyl

pentanoate), and with multiple occurrences o the unctional group

limited to halogens (e.g., 2-bromo-1-chloropentane) and alcohols (e.g.,

pentane-2,3-diol)

70. Th s dig h pss CH3C(CH3)2CH3 is

Ui CChi Chgs

Ogi Cpds


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50


H

H C C C C C C H

H

H C H

H C H

H

H

H

H

H

H

H

H

H

H

H C H

H C H

71. Th IUPAC h s dig bv is

A. 2,2,5-ihyhp

B. 3,6,6-ihyhp

C. 2-hy-5,5-dihyhx

D. 5-hy-2,2-dihyhx

Ui CChi Chgs

Ogi Cpds

72. Whih h wig i digs pss 2,2,4-ihyp?

A.

*B.

C.

D.

73. a. Draw d name v-b gi pd. Identiy i h pdy dw is sd sd. (3 marks)

b. Draw d name s is h pd h y dw bv.

(2 marks)


Knowledge30C1.5k


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Ogi Cpds

74. Whih h wig ws idis h s dig d h spdigIUPAC h pd wih h hi C8H16()?

Row Structural Diagram IUPAC Name

A. hybz

*B.

CH2CH3hyyhx

C.

CH2 CH2 CH3

ypypp

D.

CH2 CH2 CH3

ppyyp


C6H6() + C2(g) C6H5C() + HC(g) H = 80.5 kJ

75. a. Identiy d h w gi pds i h i psd byh qi bv. (3 marks)

b. Calculate h hpy i C6H5C(). (2 marks)


Knowledge30A1.6k


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Ogi Cpds


A sd ddd bi si hydb sp h is is

C6H12() i h bs igh. A shkig h sp, h sd bsvd

h h h bi si hgd g ss.

76. An interpretation that could be made rom the students observation is that thehydrocarbon sample is i and the IUPAC name o the sample couldbe ii .


Row i ii

A. sd hx-2-

B. sd yp

*C. sd hx-2-

D. sd yp


Skill30C1.3s yz d d ppy hi d p ds dvp

d ssss pssib sis

ollow appropriate IUPAC guidelines when writing the names and

ormulas o organic compounds

compile and organize data to compare the properties o structural

isomers; e.g., pairs o hydrocarbon isomers and primary, secondary

and tertiary alcohols

interpret the results o a test to distinguish between a saturated and an

unsaturated aliphatic, using aqueous bromine or potassium permanganate

solutions


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Ogi Cpds

Knowledge30C1.4k Idiy yps pds h hydxy, bxy, s ikg,

d hg i gps, giv h s .


General Structural Diagrams

1

R OH 4

R C C R

2

R C

OH

O

5

R C O R

O

3

C C

R

R

R

R6

R

Ry hi b d hydg s

77. Mh h g s digs bd bv wih h ss hpd bw.

Carboxylic acid (Rd i h frst )

Aromatic (Rd i h second )

Alcohol (Rd i h third )

Ester (Rd i h ourth )

Key: 2615


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Ogi Cpds


Th s dig h iv igdi i y pi-i diis isshw bw.

O

O H

CO

H

H C H

78. The structural diagram above represents an i compound that containsa ii and an iii unctional group.


Row i ii iii

A. i bxy k

*B. i hydxy s

C. iphi bxy k

D. iphi hydxy s


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Ogi Cpds

Knowledge30C1.5k D s isis s pds hvig h s pii

s, b wih di s s, d h ss viis i h ppis h iss.


I

II H C C C O C H

H

H

H

H

H

H O=

III H C C

H

H

H

H

H

O

O H

=

O=

IV C O C H

H C C C

H

H

H

H

O

O H

=

79. Whih h s digs bd bv ps iss?

A. I d II

B. I d IV

C. II d III

*D. III d IV


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Ogi Cpds

80. Whih h wig ws idis h dsd s dig idig d h IUPAC is C6H12?

RowCondensed Structural Diagram

or Line DiagramIUPAC Name

*A.

CH3

Mhyyp

B. Cyhx

C. 4-hypy

D.

CH3 CH2 C C CH2 CH3 Hx-3-y


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Ogi Cpds

Knowledge30C1.6k Cp, bh wihi hgs sis d g pds wih

di i gps, h biig pis d sbiiy xps iphis, is, hs, d bxyi ids.

81. Whih h wig s digs pss h pd wih hws biig pi?

*A. B.

H C C C C H

H

H

H

H

H

H

H

H

C. D.

H C C C C C C H

H

H

H

H

H

H

H

H

H

H

H

H

H C C C C C C C C H

H

H

H

H

H

H

H

H

H

H

H

H

H

H

H

H


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Ogi Cpds


Compound

Boiling Point

(C)

Solubility in

Water at 25 C

I Cyb 12 vy w

II Pp-1- 98 high

III P-1- 138 high

82. a. Draw s digs pds I, II, d III. (3 marks)

b. Explain why h biig pi pd III is high h h biig pi pd II, d explain why pd II is sb h pd I.

(2 marks)


Knowledge30-C1.3k

Ski30C1.3s yz d d ppy hi d p ds dvp

d ssss pssib sis




isomers; e.g., pairs o hydrocarbon isomers and primary, secondary,

and tertiary alcohols



solutions


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Ogi Cpds

Knowledge30C1.7k Dsib, i g s, h physi, hi d hgi

psss (i disii d sv xi) sd spgi pds ixs sis;e.g., petroleum refning, bitumen recovery.

83. a. Name d draw h hydbs. (3 marks)

b. Describe physi, hi, hgi pss h d b sd sp ix hydbs. (2 marks)


Knowledge30-C1.3k


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Ogi Cpds


Th pps shw bw is sd sp d i, ix hydbs,

i idivid hydbs by hi biig pis.

84. Th hd spig h ix hydb pds i d i his psd i h dig bv is

A. ii

B. pipiiC. sv xi

*D. i disii


Skill

30C1.3s yz d d ppy hi d p ds dvpd ssss pssib sis




isomers; e.g., pairs o hydrocarbon isomers and primary, secondary and

tertiary alcohols



solutions


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Ogi Cpds

General Outcome 2:

Students will describe chemical reactions of organic compounds

Knowledge30C2.1k D, is, d pvid xps sip ddii, sbsii,

iii, sii d bsi is.


Common Organic Reactions

1 C2H4(g) + H2(g) C2H6(g)

2 C2H5OH(l) C2H4(g) + H2O(l)

3 C6H6(l) + Br2(l) C6H5Br(l) + HBr(g)

4 CH3COOH(l) + CH3OH(l) CH3COOCH3(l) + H2O(l)

85. Mh h qi psig h is bd bv wih h yp i i xpis bw.

Addition (Rd i h frst )

Substitution (Rd i h second )

Elimination (Rd i h third )

Esterifcaton (Rd i h ourth )

Key: 1324


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Ogi Cpds

Knowledge30C2.2k Pdi pds d wi d ip bd qis sip

ddii, sbsii, iii, sii d bsi is.

86. Wh h d hi id , h pds

A. hy h y

B. hy h y

C. hy h d w

*D. hy h d w


Skill

30C2.1s qsis b bsvd iships d p ivsigis qsis, ids, pbs, d isss

predict the ester ormed rom an alcohol and an organic acid

87. The type o reaction that occurs when ethene gas and chlorine gas reactis i , and the name o the organic compound produced is ii .


Row i ii

*A. ddii 1,2-dihh

B. ddii 1-hh

C. sbsii 1,2-dihh

D. sbsii 1-hh


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Ogi Cpds


Th sv hds pdig hh, whih b sd s svd ig.

Reactants Type o Reaction1 Eh 5 Addii

2 Eh 6 Cdsi

3 Ehy 7 Eiii

4 Eh 8 Sbsii

88. Mh h s d yp i bd bv wih w h hds pdig hh bw.

Method I

+

Cl Cl +

H Cl which is a(n) reaction.Reactant

(Record in thefrst column)

Type o Reaction(Record in the

second column)

Method II

+

H Cl which is a(n) reaction.Reactant

(Record in thethird column)

Type o Reaction

(Record in theourth column)

Key: 1825


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Ogi Cpds

Knowledge30C2.3k D, is, d pvid xps s (e.g., ethylene),

pys (e.g., polyethylene) d pyizi i ivig syss(e.g., carbohydrates, proteins) d ivig syss (e.g., nylon,polyester, plastics).


Reaction Equation

IUPAC Names and Organic Terms

1 Eh 5 M

2 Eh 6 Py

3 Ehy 7 Pyizi

4 Pyh

89. Mh h IUPAC h gi bd bv wih is dsip bw.

Product name (Rd i h frst )

Reactant name (Rd i h second )

Type o organic reaction (Rd i h third )

Classifcation o product (Rd i h ourth )

Key: 4276


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Ogi Cpds


90. Whih h wig s is qid pd h py i hs dig bv?

A. CH2CCH2C

B. CH3CH2C

*C. CH2=CHC

D. CH/CC


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Ogi Cpds

Knowledge30C2.4k R sip ddii, sbsii, iii, sii d

bsi is j is h pd h gy diy ip pds ssi s.


A iy ip i ivvig h ssi pp is psd

by h wig qi.

C3H8(g) + 5 O2(g) 3 CO2(g) + 4 H2O(g)

91. During this i reaction, energy is ii the surroundings.


Row i ii

*A. bsi sd

B. bsi bsbd

C. iii sd

D. iii bsbd


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Ogi Cpds

91. Identiy h hs i ip i Ab.

a. Draw h s d pvid h IUPAC h hy hs. (2 marks)

b. Identiy s h py d h h y hs, d

write h qi h pss h i h py. (3 marks)


Knowledge30C2.3k

Science, Technology, and Society30C2.1ss xpi hw si d hgy dvpd si ds

d xpd h pbiiy

describe processes or obtaining economically important compounds

rom ossil uels

describe major reactions used in the petrochemical industry in Alberta,

such as in the production o methanol, ethylene glycol, polyethylene,

polyvinyl chloride (PVC), and urea ormaldehyde


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Unit DChemical Equilibrium Focusing on

AcidBase Systems

General Outcome 1:

Students will explain that there is a balance of opposing reactions inchemical equilibrium systems

Knowledge30D1.1k D qiibi d s h ii h ppy hi sys

i qiibi; i.., sd sys, sy ppis, q s wd d vs is.

93. Whih h wig ss ppis sys qiibi?

*A. Th h wd i is q h h vs i.

B. Th i h s qs h i h pds.

C. Th h wd i is g h h h vs i.

D. Th i h pds is g h h i hs.


N2O4(g) + h 2 NO2(g)

ss bw

94. Whih h wig ppis wd not b sd di i h qiibisys psd by h qi bv is qiibi?

A. Tp

B. Pss

C. C

*D. Mss

Ui DChi Eqiibi

Fsig AidBs Syss


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Knowledge30D1.2k Idiy, wi d ip hi qis syss qiibi.

95. Th qi h pss h qiibi phsphi id is

A. H3PO4(q) 3 H+(q) + PO4

3(q)

B. H3PO4(q) H3O+(q) + PO3

3(q)

C. H3PO4(q) + H2O() H2PO4(q) + OH(q)

*D. H3PO4(q) + H2O() H3O+(q) + H2PO4

(q)


A hii pd sp I2(g) d H2(g) i py fsk d wd h

s h qiibi. A qiibi i ws did h HI(g) ws

ps g wih H2(g) d I2(g).

96. a. Write h bd qi h pss h qiibi sys. (2 marks)

b. Identiy h ssss h wh ppid h sys wd is hi HI(g). (3 marks)


Knowledge30-D1.3k

Ui DChi Eqiibi

Fsig AidBs Syss


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Knowledge30D1.3k Pdi, qiivy, sig L Chis piip, shis i qiibi

sd by hgs i p, pss, v, i hddii ys d dsib hw hs hgs h qiibis.

97. Wh ppid qiibi sys, whih h wig ssss wd s hg i h Kc v h qiibi hs b -sbishd?

A. Addii ys

*B. Ds i p by ig h sys

C. Addii i gs is h pss

D. Ds i i by vig pd


2 NO2(g) N2O4(g) + h

bw ss

Stresses Applied to an Equilibrium System

1 Is v 5 Is NO2(g) i

2 Ds v 6 Ds NO2(g) i

3 Is p 7 Is N2O4(g) i

4 Ds p 8 Ds N2O4(g) i

98. Th ssss bd bv h wi s h qiibi sys shi h

, , , d .

Key: 1367

Ui DChi Eqiibi

Fsig AidBs Syss


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99. Design pd h wd w y ppy sss h qiibi syspsd by h wig qi, d explain wh hpps h syswh h sss is ppid.

2 NO2(g) N2O4(g) + 101.4 kJ

bw ss

Y sps shd id

an explanation, based on Le Chteliers principle, o how the stress would shit the

equilibrium

a detailed procedure o how to apply the stress

a prediction o what evidence there would be that the shit had occurred


Skill

30D1.1s qsis b bsvd iships d p ivsigis qsis, ids, pbs, d isss

predict variables that can cause a shit in equilibrium

design an experiment to show equilibrium shits, e.g., colour change,

temperature change, precipitation

Ui DChi Eqiibi

Fsig AidBs Syss


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Knowledge30D1.4k D Kc pdi h x h i d wi qiibi w

xpssis giv hi qis, sig ws wh bis.


HNO2(q) + H2O() H3O+(q) + NO2

(q) K = 5.6 103

100. The equilibrium law expression or the equation above is i , and atequilibrium the amount o products present is ii the amount o reactantspresent.


Row i ii

*A. K =[H3O

+(q)][NO2(q)]

[HNO2(q)]ss h

B. K =[H3O

+(q)][NO2(q)]

[HNO2(q)][H2O()]g h

C. K =[HNO2(q)][H2O()]

[H3O+

(q)][NO2

(q)]

ss h

D. K =[HNO2(q)]

[H3O+(q)] [NO2

(q)]g h

Ui DChi Eqiibi

Fsig AidBs Syss

101. Th qi h is psd by h qiibi w xpssi

K =[NO2(g)]

2

is[NO(g)]2 [O2(g)]

A. 2 NO2(g) 2 NO(g) + O2(g)

*B. 2 NO(g) + O2(g) 2 NO2(g)

C. NO2(g) NO(g) + O2(g)

D. NO(g) + O2(g) NO2(g)


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Knowledge30D1.5k Dsib BsdLwy ids s p ds d bss s p

ps.

102. Whih h wig sbss s BsdLwy bs?

A. NC(q)

B. CH3OH(q)

C. HCOOH(q)

*D. NHCO3(q)


HCO3(q) + HSO3

(q) H2CO3(q) + SO32(q)

103. Th BsdLwy ids i h qi bv

A. HCO3(q) d HSO3

(q)

B. HCO3(q) d H2CO3(q)

*C. HSO3(q) d H2CO3(q)

D. HSO3(q) d SO32(q)

Ui DChi Eqiibi

Fsig AidBs Syss


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Knowledge30D1.6k Wi BsdLwy qis, idig idis, d pdi whh

s pds vd idbs qiibi is pi d pypi ids d bss.

104. Whih h wig qis pss qiibi sys h vs hpds?

A. HOC(q) + HCO3(q) OC(q) + H2CO3(q)

B. H2SO3(q) + CN(q) HSO3

(q) + HCN(q)

*C. HF(q) + NO2(q) F(q) + HNO2(q)

D. H2S(q) + F(q) HS(q) + HF(q)

105. Whih h wig ws idis h qiibi qi d si h wd wh w dps ph d idi, HP(q)/P(q), ddd 100.00 L sp 0.50 /L is id?

Row Equilibrium Equations Solution Colour

*A. HNO2(q) + P(q) NO2

(q) + HP(q) Yw

B. HNO2(q) + P(q) NO2

(q) + HP(q) Rd

C.HNO2(q) + HP(q) NO2

(q) + H2P

+

(q) YwD. HNO2(q) + HA(q) NO2

(q) + H2P+(q) Rd

106. Whih h wig qis pss wk bs sys qiibi?

*A. NH3(q) + H2O() NH4+(q) + OH(q)

B. NH3(q) + H2O() NH4+(q) + OH (q)

C. NH4+(q) + H2O() NH3(q) + H3O

+(q)

D. HNO2(q) + CN(q) NO2

(q) + HCN(q)

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Fsig AidBs Syss


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Knowledge30D1.7k Idiy jg pis d phipi sbss.

107. Whih h wig sbss is phipi spis?

A. CH4(g)

B. CH3OH(q)

C. CH3COO(q)

*D. HOOCCOO(q)


HNO2(q) + H2BO3(q) NO2

(q) + H3BO3(q)

108. In the reaction represented by the equation above, an amphiprotic speciesis i , and a conjugate acidbase pair is ii .


Row i ii

A. HNO2(q) HNO2(q) d NO2(q)

B. HNO2(q) H2BO3(q) d NO2(q)

*C. H2BO3(q) HNO2(q) d NO2

(q)

D. H2BO3(q) H2BO3

(q) d NO2(q)

Ui DChi Eqiibi

Fsig AidBs Syss


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Knowledge30D1.8k D b s ivy g s wk id bs d is

jg i qiibi h ii ivy s pH wh ss id bs ddd.

109. Whih h wig pis hi pds s b sys?

A. HC(q) d NOH(q)

B. HC(q) d H2SO4(q)

C. CH3COOH(q) d HC(q)

*D. CH3COOH(q) d NCH3COO(q)


A 100.00 L sp 0.100 /L si H2CO3(q) is bid wih

100.00 L sp 0.100 /L si NHCO3(q) d h wig

qiibi sys is sbishd.

H2CO3(q) + H2O() HCO3(q) + H3O

+(q)

110. Whih h wig ws idis h dii h shi i qiibi dh h pH h sys wh s qiy hydhi id is

ddd h qiibi sys bv?

Row Direction o Shit Eect on pH

A. Twd h pds N hg

B. Twd h pds Ds

*C. Twd h s N hg

D. Twd h s Ds


Knowledge30D1.3k

Ui DChi Eqiibi

Fsig AidBs Syss


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Skill30D1.3s Ayz d d ppy hi d p ds dvp

d ssss pssib sis

write the equilibrium law expression or a given equation

analyze, qualitatively, the changes in concentrations o reactants and

products ater an equilibrium shit

interpret data rom a graph to determine when equilibrium is

established and to determine the cause o a stress on the system

interpret, qualitatively, titration curves o monoprotic and polyprotic

acids and bases or strong acid-weak base and weak acid-strong base

combinations, and identiy buering regions


A sd id kw sp qs id wih qs sdihydxid. Th sd gphd h d s shw i h dig bw.

Graph o Titration Data

0 10 20 30 40

7

Ui DChi Eqiibi

Fsig AidBs Syss


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111. The graph o the students titration data shows the titration o a i acidwith a strong base, and on the graph, buering occurs at ii .


Row i iiA. sg gi II y

B. sg gis II d IV

*C. wk gi II y

D. wk gis II d IV

Ui DChi Eqiibi

Fsig AidBs Syss

112. Whih h wig digs pss h ii pypi id wih

sg bs?


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General Outcome 2:

Students will determine quantitative relationships in simple

equilibrium systems

Knowledge30D2.1k R h ps pH d hydi i i d pOH d

hydxid i i, i i ids d bss.

113. I h pH si hgs 2 4, h h hydi i i

A. is dbd

B. is hvd

C. iss by 100

*D. dss by 100

114. Th hydxid i i i si wih pH 3.50, xpssdi sii i, is a.b 10cd/L. Th vs a, b, c, dd

, , , d .

Key: 3211

Ui DChi Eqiibi

Fsig AidBs Syss


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Knowledge

30D2.2k D Kw, K, Kb d s hs di pH, pOH, [H3O+] d [OH]

idi d bsi sis.

115. Th Kb h h i, CH3COO(q), xpssd i sii i,

is a.b 10cd. Th vs a, b, c, dd , , , d .

Key: 5610


I hydg sd gs is sd i h sph, i dissvs i sphi

w qs hydsi id. Th iizi qs hydsiid b psd by h wig qiibi qi.

H2S(q) + H2O() HS(q) + H3O

+(q)

116. I the concentration o a sample o aqueous hydrosuluric acid is 0.050 mol/L,then the hydronium ion concentration is i and the pOH o thesolution is ii .


Row i iiA. 5.0 102 /L 1.30

B. 5.0 102 /L 9.82

C. 6.7 105 /L 1.30

*D. 6.7 105 /L 9.82

Ui DChi Eqiibi

Chemistry 30 Exemplars 2009-10

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Transcript of Chemistry 30 Exemplars 2009-10