Thermochemistry Post Lab

Thermochemistry Post Lab - Post-Lab Data Summary Note :...

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Post-Lab Data Summary Note : some questions will display a variable like "nCount" or "SyInput" instead of an actual number in the data summary. Q# Question Text 5) Scoring Scheme: 3-2-1-1 Part I. In step 8 of Part I, why do you not want any of the water on the outside of the test tube to drip off into the calorimeter? Your Answer: c. Both a and b. You Scored 3 points out of 3 Possible 6) Data Entry - No Scoring Part I. For each trial, enter the precise mass in GRAMS of the "hot" water in the test tube. Your mass precision should be reported to a thousandth of a gram, i.e. 30.034 g. (Use 5 significant figures.) Your Answer: 25.7410 No Points Possible Your Answer: 27.85 No Points Possible Your Answer: 26.95 No Points Possible 7) Data Entry - No Scoring Part I. For each trial, enter the initial temperature of the "hot" water in the test tube, T i hot water . Your temperature precision should be reported to two-tenths of a degree Celsius, i.e. 99.6 o C. Your Answer: 95.50 No Points Possible Your Answer: 97.50 No Points Possible Your Answer: 98 No Points Possible 8) Data Entry - No Scoring Part I. For each trial, enter the final temperature of the mixture in the calorimeter, T f . This should be the highest temperature reached after mixing. Your temperature precision should be reported to two-tenths of a degree Celsius, i.e. 34.0 o C. Your Answer: 37 No Points Possible Your Answer: 40 No Points Possible Your Answer: 41 No Points Possible 9) Scoring Scheme: 3-3-2-1 Part I. For each trial, enter the amount of heat lost by the hot water, q hot water . Hints: The specific heat of water is 4.184 J/g o C. Be careful with your algebraic sign and remember that the change in temperature is equal to the final temperature minus the initial temperature. Report your answer using 4 digits. Your Answer: -6300 You Scored 3 points out of 3 Possible Your Answer: -6700 No Points Possible Your Answer: -6427 No Points Possible 10) Data Entry - No Scoring
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Part I. For each trial, enter the precise mass in GRAMS of the "cool" water in the calorimeter. Your mass precision should be reported to a thousandth of a gram, i.e. 70.546 g. (Use 5 significant figures.) Your Answer: 69.7790 No Points Possible Your Answer: 70.2090 No Points Possible Your Answer: 69.2340 No Points Possible 11) Data Entry - No Scoring Part I. For each trial, enter the initial temperature of the "cool" water in the calorimeter, T i calorimeter . Your temperature precision should be reported to two-tenths of a degree Celsius, i.e. 17.2 o C. Your Answer: 20 No Points Possible Your Answer: 20.90 No Points Possible Your Answer: 23 No Points Possible 12) Scoring Scheme: 3-3-2-1 Part I. For each trial, enter the amount of heat gained by the cool water, q cool water . The specific heat of water is 4.184 J/g o C. Report your answer to 4 digits. Note: You should always carry 1 or 2 extra digits beyond the number of significant figures until your final
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Thermochemistry Post Lab - Post-Lab Data Summary Note :...

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