Name: Date: 02.02 QUIZ Dimensional...

Chemistry REVIEW LA-PRIVATE:2014-2015:330_ModChem:330_tests_quizzes:330.02_Measurements and Calculations:330.02.02a.q_Dimensional_Analysis_Quiz_Review_KEY.docx Name: Date: § 02.02 QUIZ Dimensional Analysis Use dimensional analysis to covert each of the following measurements. Show all work. Include all units. (1 inch = 2.54 cm; speed of light (c) = 3.0 x 10 8 m/s; 5,280 ft = 1 mile; 1 L = 1.06 qt) 1. Convert 48,311 mL to liters. 48,311 mL → ? L !", !"" !" ! ! ! !" ! !" = !". !" ! 2. Convert 1.6 cubic micrometers (1μm 6 = 1m) to cubic meters (m 3 ). 1.6 μ m 3 → ? m 3 !!. ! !" ! ! (! !) ! (!" ! !") ! = !. ! ! !" !!" ! ! 3. 2.36 x 10 4 seconds to days. 2.36 x 10 4 sec → ? days !. !" ! !" ! !"# ! ! !"# !" !"# ! ! !" !" !"# ! ! !"# !" !" = !. !"# !"# 4. The density of lead is 11.3 g/cm 3 . What is the mass (kg) of 45 cm 3 of lead? 45 cm 3 → ? kg [plan: convert (length) 3 to mass using density] !" !" ! ! !!. ! ! ! !" ! ! ! !" !" ! ! = !. !" !" 5. A solution of barium nitrate (Ba(NO 3 ) 2 ) contains 61.2 g Ba(NO 3 ) 2 /L of solution. How many grams of barium nitrate are contained in 2.75 L of solution? 2.75 L sol’n → ? g Ba(NO3)2 [plan: convert L to g using 61.2 g/L] !. !" ! ! !". ! ! !"(!" ! ) ! ! ! = !"# !

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Page 1: Name: Date: 02.02 QUIZ Dimensional Analysisdocfish.com/wp-content/uploads/2014/09/330.02.02a.q...Chem 02.02.c.Dimensional Analysis-REVIEW p. 3 9. One edge of a cube of pure copper

Chemistry REVIEW

LA-PRIVATE:2014-2015:330_ModChem:330_tests_quizzes:330.02_Measurements and Calculations:330.02.02a.q_Dimensional_Analysis_Quiz_Review_KEY.docx

Name: Date: § 02.02 QUIZ Dimensional Analysis Use dimensional analysis to covert each of the following measurements. Show all work. Include all units. (1 inch = 2.54 cm; speed of light (c) = 3.0 x 108 m/s; 5,280 ft = 1 mile; 1 L = 1.06 qt) 1. Convert 48,311 mL to liters.

Ø 48,311 mL → ? L

!",!"" !"!

! !!"!!" = !".!" !

2. Convert 1.6 cubic micrometers (1µm6 = 1m) to cubic meters (m3).

Ø 1.6 µm3 → ? m3

!!.! !"!!

(! !)!

(!"! !")! = !.! ! !"!!" !!

3. 2.36 x 104 seconds to days.

Ø 2.36 x 104 sec → ? days

!.!" ! !"! !"#!! !"#!" !"#!

! !"!" !"#!

! !"#!" !" = !.!"# !"#

4. The density of lead is 11.3 g/cm3. What is the mass (kg) of 45 cm3 of lead?

Ø 45 cm3 → ? kg [plan: convert (length)3 to mass using density]

!" !"!!!!.! !! !"! !

! !"!"! ! = !.!" !"

5. A solution of barium nitrate (Ba(NO3)2) contains 61.2 g Ba(NO3)2/L of solution. How many grams of barium nitrate are contained in 2.75 L of solution?

Ø 2.75 L sol’n → ? g Ba(NO3)2 [plan: convert L to g using 61.2 g/L]

!.!" !!!".! ! !"(!"!)!

! ! = !"# !

Page 2: Name: Date: 02.02 QUIZ Dimensional Analysisdocfish.com/wp-content/uploads/2014/09/330.02.02a.q...Chem 02.02.c.Dimensional Analysis-REVIEW p. 3 9. One edge of a cube of pure copper

Chem §02.02.c.Dimensional Analysis-REVIEW p. 2

6. The speed of light is 3.0 x 108 m/s. The Earth is 92,960,000 miles from the sun. How long (i.e., in Xmin Ysec) does it take sunlight to reach us?

7. Convert 7.3 x 10–4 mL/s to cubic feet per day.

8. Each student in a class will need four stoppers for an experiment. There are 24 students in the class.

What is the mass of stoppers that must be ordered and what will be the cost? (60 stoppers = 500.0 g = $4.89)

Chem §02.02.c.Dimensional Analysis-REVIEW p. 3

9. One edge of a cube of pure copper metal is carefully measured and found to be 2.162 cm. An atom of copper is 0.2560 nm in diameter. How many atoms of copper are on one edge of the cube?

10. The density of mercury (Hg) is 13.6 g/cm3. What is the volume (in quarts) is occupied by 100.0 g of Hg?