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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
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 twotenths 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 twotenths 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: 3321
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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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:
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 twotenths 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: 3321
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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 Spring '09
 WILLIAMCASEY

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