1. What is the essence of determining the heat capacity of the calorimeter? Is it possible to replace the calorimeter in the middle of the experiment, say you use same type of calorimeter, but you borrowed from another group to perform part C and D? Why? 2. Explain the temperature profiles of the contents of the calorimeter. 3. What is the relationship of the temperature with the calculated AH? Compare the AH of the three

Principles of Instrumental Analysis
7th Edition
ISBN:9781305577213
Author:Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher:Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Chapter34: Particle Size Determination
Section: Chapter Questions
Problem 34.10QAP
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PARTA
PART B
NaOH
PART C
NaOH
HC
()
PART D
NaOH
Components
HC
Mass (g)
20g
100g
2g
100g
2g
Volume (mL)
100ml 50ml
50ml
Concentration
(M)
Initial
Temperature
(c)
Final
Temperature
C)
0.500M
1M
1M
20°C
20C
20 C
20 C
2.70°C
2521C
31.83 C
26.81 C
Calculated
Values
c=012 C
AH,=D
4951.09 J
AH, =
2850.12J
1. What is the essence of determining the heat capacity of the calorimeter? Is it possible to replace
the calorimeter in the middle of the experiment, say you use same type of calorimeter, but you
borrowed from another group to perform part C and D? Why?
2. Expiain the temperature profiles of the contents of the calorimeter.
3. What is the relationship cf the temperature with the caculated AH? Compare the AH of the three
reactions.
一
1.
1.
Transcribed Image Text:PARTA PART B NaOH PART C NaOH HC () PART D NaOH Components HC Mass (g) 20g 100g 2g 100g 2g Volume (mL) 100ml 50ml 50ml Concentration (M) Initial Temperature (c) Final Temperature C) 0.500M 1M 1M 20°C 20C 20 C 20 C 2.70°C 2521C 31.83 C 26.81 C Calculated Values c=012 C AH,=D 4951.09 J AH, = 2850.12J 1. What is the essence of determining the heat capacity of the calorimeter? Is it possible to replace the calorimeter in the middle of the experiment, say you use same type of calorimeter, but you borrowed from another group to perform part C and D? Why? 2. Expiain the temperature profiles of the contents of the calorimeter. 3. What is the relationship cf the temperature with the caculated AH? Compare the AH of the three reactions. 一 1. 1.
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