2. Considering your response to Question 1, as well as other data in your table from Part 1 and 2, describe how [Zn] affects cell potential. Then describe how [Cu] affects cell potential. katiel is low, the
2. Considering your response to Question 1, as well as other data in your table from Part 1 and 2, describe how [Zn] affects cell potential. Then describe how [Cu] affects cell potential. katiel is low, the
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
Chapter23: Potentiometry
Section: Chapter Questions
Problem 23.14QAP
Related questions
Question
Please explain Q2 from Post lab questions.
![Part 3
Standard Reduction
Potential of IM Cu" /
Cu
Standard Reduction
Potential of IM Zn/
Zn
Standard Potential of
Cell
Theoretical Value
0.337
-0.7618
EIIV
Measured Cell Potential
Cell Temperature
Concentration of Zn²
Solution
Concentration of Cu
Solution (Show calculations)
Measured Value
1.07
22.5°C
295.7 15
0-10M
Post-lab Questions:
(No additional discussion required)
I. A. Which of your trials from Part 1 or Part 2 gave the highest cell potential? Write the concentrations
and value of E here. B. Which gave the lowest cell potential? Write the results here.
Highest E= 1.21
Lowest E= 1.05
[Zn"]
[Zn¹"]
[Cu] = IM
[Cu]=0.025 H
2. Considering your response to Question 1, as well as other data in your table from Part 1 and 2,
describe how [Zn³] affects cell potential. Then describe how [Cu] affects cell potential.
station is low, the](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F3b1da58f-c5e9-4a7a-ba1a-f8c924e5ceb7%2F8553aaa1-67c8-4cdf-9644-d8a0385ad880%2Ffzxemw_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Part 3
Standard Reduction
Potential of IM Cu" /
Cu
Standard Reduction
Potential of IM Zn/
Zn
Standard Potential of
Cell
Theoretical Value
0.337
-0.7618
EIIV
Measured Cell Potential
Cell Temperature
Concentration of Zn²
Solution
Concentration of Cu
Solution (Show calculations)
Measured Value
1.07
22.5°C
295.7 15
0-10M
Post-lab Questions:
(No additional discussion required)
I. A. Which of your trials from Part 1 or Part 2 gave the highest cell potential? Write the concentrations
and value of E here. B. Which gave the lowest cell potential? Write the results here.
Highest E= 1.21
Lowest E= 1.05
[Zn"]
[Zn¹"]
[Cu] = IM
[Cu]=0.025 H
2. Considering your response to Question 1, as well as other data in your table from Part 1 and 2,
describe how [Zn³] affects cell potential. Then describe how [Cu] affects cell potential.
station is low, the
![Data Sheet for Electrochemical
Part 1
[CUSO4].
Molarity
[ZnSO4].
Molarity
Measured
cell
potential, V
Temperature,
Temperature,
°C
K
IM
Activity
Part 2,
Trial 1
0-10M
Part 2,
Trial 2
0-10M
Instructor Approval of Part 1 voltage measurement:
Part 2,
Part 2,
Trial 4
Trial 6
00254 0.025 0.025-1
Part 2,
Trial 3
IM
Part 2,
Trial 5
IM 10M 0.10 M 0.10 M 0.10M IM
421
1.18 1.12
1.08
1.06 1.05 1-07
22.7
22.9 22 5
22.5 22.5
22.2 21.4
295.8 296-1 245.5 295-7 215.6 245.4 294.6
040M
Part 2,
Trial 7](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F3b1da58f-c5e9-4a7a-ba1a-f8c924e5ceb7%2F8553aaa1-67c8-4cdf-9644-d8a0385ad880%2Fb6hh3u_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Data Sheet for Electrochemical
Part 1
[CUSO4].
Molarity
[ZnSO4].
Molarity
Measured
cell
potential, V
Temperature,
Temperature,
°C
K
IM
Activity
Part 2,
Trial 1
0-10M
Part 2,
Trial 2
0-10M
Instructor Approval of Part 1 voltage measurement:
Part 2,
Part 2,
Trial 4
Trial 6
00254 0.025 0.025-1
Part 2,
Trial 3
IM
Part 2,
Trial 5
IM 10M 0.10 M 0.10 M 0.10M IM
421
1.18 1.12
1.08
1.06 1.05 1-07
22.7
22.9 22 5
22.5 22.5
22.2 21.4
295.8 296-1 245.5 295-7 215.6 245.4 294.6
040M
Part 2,
Trial 7
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