This preview shows pages 1–3. Sign up to view the full content.
PostLab 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: 3211
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 2 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: 26.36 No Points Possible
Your Answer: 30
No Points Possible
Your Answer: 30
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, Tihot
water. Your temperature precision should be reported to twotenths of a degree Celsius,
i.e. 99.6oC.
Your Answer: 100.3 No Points Possible
Your Answer: 100.2 No Points Possible
Your Answer: 97
No Points Possible
8)
Data Entry  No Scoring
Part I. For each trial, enter the final temperature of the mixture in the calorimeter, Tf.
This should be the highest temperature reached after mixing. Your temperature precision
should be reported to twotenths of a degree Celsius, i.e. 34.0oC.
Your Answer: 40.1
No Points Possible
Your Answer: 43
No Points Possible
Your Answer: 42
No Points Possible
9)
Scoring Scheme: 3321
Part I. For each trial, enter the amount of heat lost by the hot water, qhot water.
Hints: The specific heat of water is 4.184 J/goC. 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: 6640 You Scored 3 points out of 3 Possible
Your Answer: 7180 No Points Possible
Your Answer: 6904 No Points Possible
10)
Data Entry  No Scoring
This preview has intentionally blurred sections. Sign up to view the full version.
View Full DocumentPart 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: 70.1
No Points Possible
Your Answer: 70.1
No Points Possible
Your Answer: 70.05 No Points Possible
11)
Data Entry  No Scoring
Part I. For each trial, enter the initial temperature of the "cool" water in the calorimeter,
Ticalorimeter. Your temperature precision should be reported to twotenths of a degree
Celsius, i.e. 17.2oC.
Your Answer: 23
No Points Possible
Your Answer: 23
No Points Possible
Your Answer: 23
No Points Possible
12)
Scoring Scheme: 3321
Part I. For each trial, enter the amount of heat gained by the cool water, qcool water. The
specific heat of water is 4.184 J/goC. Report your answer to 4 digits.
Note: You should always carry 1 or 2 extra digits beyond the number of significant
This is the end of the preview. Sign up to
access the rest of the document.
 Winter '07
 augustine

Click to edit the document details