No Slide Title

Lets Play Jeopardy!2 Terms

3Fix that Mistake4$2006-200Draw a picture that accurately depicts the greenhouse effect

62Potpourri6Laboratory7Making Connections8$2002-2001 - 100What is the formula you should use to find the specific heat of a substance?

22DailyDouble!!

Daily Double Round 175To Complete the Daily Double Sequence for Round One:

Click on any blue area on the slide that is currently displayed Click on Slide Show Action SettingsThe Action Settings Dialog Box will be displayed. You will see that the HYPERLINK is currently set to Slide 8Change the HYPERLINK so that it is set to the slide number you made note of previouslyClick OK until the Action Settings Dialog Box disappearsSaveReturn to Slide 8 and select View Slide Show. Test your Daily Double button to make sure it works as you wish it to.$400How are heat, temperature and enthalpy related?

26$500Given the problem:

State what is given, what youre solving for, and how you would solve.

What is the specific heat of gold if the temperature of a 8.21 g sample of gold is goes from 4.2C to 8C when 6.51 J of heat is added?

28$1003-100Does this reaction have a positive or negative enthalpy?

Video30$2003-200Draw an enthalpy diagram for the following reaction: C3H8 + 5O2 3CO2 + 4H20 H = -2043 kJ

32$300When pressure is constant, the heat absorbed or released during a chemical reaction

15$400Solve:How much energy is transferred when 147 g of NO2 is dissolved in 100 g of water?3 NO2 + H20 2 HNO3 + NO H = -138 kJ

36$500Using the following,CaO + CO2 CaCO3 H = -178 kJCaO + H2O Ca(OH)2H = -65 kJCalculate the H for the reactionCa(OH)2 + CO2 CaCO3 + H20

38$1001 - 100Draw a diagram that depicts energy flow between the system and the surroundings of an endothermic rxn40$2004-200What is meant by Standard State?

42$3004-200What is the specific heat of water?(HINT: Remember to include units)

$4004-400What two major factors affect a substances heat capacity?

46$500Solve: When 13.7 g sample of Pb(NO3)2 dissolves in 85.0 g of water in a calorimeter, the temperature drops from 23.4C to 19.7C. Calculate H for the reaction.48$1005-1001 - 100Why is a calorimeter made of styrofoam?

50$2005-200How do you convert 2.02 g of NaOH into moles?

52$300You put 3 g of CaCl2 into 75 mL of water in a calorimeter. The temperature rises to 30C from 22C. Find heat of the reaction. Hint: Remember units!!

54$4005-400Why is it important to document how you perform an experiment accurately?

56$5005-500You put 100mL of 0.5M HCl into a calorimeter, then added 2.02 g of NaOH. The temperature rose 4C.

What is the enthalpy of the reaction?

58$1006-1001 - 100What is calorie density?

60DailyDouble!!

Daily Double Round 174To Complete the Daily Double Sequence for Round One:

Click on any blue area on the slide that is currently displayed Click on Slide Show Action SettingsThe Action Settings Dialog Box will be displayed. You will see that the HYPERLINK is currently set to Slide 8Change the HYPERLINK so that it is set to the slide number you made note of previouslyClick OK until the Action Settings Dialog Box disappearsSaveReturn to Slide 8 and select View Slide Show. Test your Daily Double button to make sure it works as you wish it to.$3006-300List 3 things you can do in your everyday life to reduce your CO2 emissions?

64$400-400List all six of the greenhouse gases and give an example of at least 2 sources of the gases

66$5006-500How does Coca-Colafigure out how many calories are in their soft drinks?

68EnthalpyFINAL JEOPARDY!!

70$30011.8 g Fe 1 mol Fe -1120.48 J 1 55.85 g Fe 3 mol Fe$400Find Limiting Reactant

Solve

147 g NO2 1 mol NO2 1 mol H20 18 g H20 1 46 g NO2 3 mol NO2 1 mol H20= 19.2 g H20 needed; Given 100 g. NO2 is limiting reactant

147 g NO2 1 mol NO2 -138 kJ 1 46 g NO2 3 mol NO2= -147 kJEXOTHERMIC!37$500KEEP: CaO + CO2 CaCO3 H = -178 kJFLIP: CaO + H2O Ca(OH)2H = -65 kJ

So, CaO + CO2 CaCO3 H = -178 kJCa(OH)2 CaO + H2O H = +65 kJ

Therefore,H for target reaction = -178 + 65 = -113 kJ

EXOTHERMIC!39$1001 - 100SYSSURR41$2001 - 100The most stable form of an element under standard conditions (25C, 1 atm)

43Onsite: ID 17.5%Green Power: ID 70% for 2 years, or 35% for 4 years$3004-400A1 - 1004.184 J gC

$4004-400A1 - 100Heat capacity is amt of heat needed to raise the temperature of an object by 1C. Mass and composition impact a substances heat capacity.

47$5001 - 10013.7 g Pb(NO3)2 1 mol Pb(NO3)2 1 331.2 g Pb(NO3)2 = 0.041 mol qsurr = (85.0 g H2O) (4.184 J/gC) (19.7 23.4) = -1315.9 Jqrxn = +1315.9 J

H = +1315.9 J= 32095 J/mol 0.041 mol

Figure out how many moles of Pb(NO3)2 were involved

Find qsurr and qrxn

Find Enthalpy

ENDOTHERMIC!49$1005-100A1 - 100Styrofoam helps contain the heat within the calorimeter so that the most accurate temperature measurements can be made

51$2005-200A1 - 1002.02 g NaOH 1 mole NaOH1 39.98 g NaOH = 0.05 mol NaOH53$3001 - 100qsurr = 75g 4.184J/gC (30C 22C)= 2500 J

qsurr = - qrxn

Therefore, qrxn = -2500 J55$4005-400A1 - 100Accurate documentation of how you achieved your results helps you and others reproduce your data.

57Figure out how many moles of NaOH were involved

Find qsurr and qrxn

Find Enthalpy

$5001 - 1001 - 1002.02 g NaOH 1 mol NaOH 1 39.98 g NaOH = 0.05 mol qsurr = (100 g H2O) (4.184 J/gC) (4C) = 1673.6 Jqrxn = -1673.6 J

H = - 1673.6 J= -33472 J/mol 0.05 mol

EXOTHERMIC!59$1006-100A1 - 100Amount of calories per gram of food.The Federal Nutritional Guidelines encourage you to eat foods that have a low calorie density. Can you give an example?

61$2001 - 100

63$3001 - 100Unplug cell phone charger when not in use!Use CFLs!Drive Less!

65$4006-400A1 - 100CO2 power plant emissionsCH4 cow fartsN2O car exhaustSF6 chemical plant processCFCs Refrigerator FreonHFCs air conditioning unit coolant

67$12,500 - member$5001 - 100Using a bomb calorimeter

Video69

Juan performed a calorimetry experiment to determine H for the following reaction: KOH K+ + OH-. His calorimeter contained 64 g of water at initial temperature of 20.7C. When he added 1.65 g of KOH to the calorimeter, the temperature rose to 26.9C. What is the value of H that Juan will obtain?

71Contestants:Please put down yourwriting tools.

72Figure out how many moles of KOH were involved

Find qsurr and qrxn

Find Enthalpy

$5001 - 1001 - 1001.65 g KOH 1 mol KOH 1 56 g KOH = 0.029 mol qsurr = (64 g H2O) (4.184 J/gC) (26.9C 20.7C) = +1660 Jqrxn = -1660 J

H = - 1660 J= -57241 J/mol 0.029 mol

EXOTHERMIC!73