Consider the galvanic cell based on the following half-reactions: Zn2+ + 2e → Zn ɛ° = -0.76 V Cd²+ + 2e- → Cd ɛ° = -0.40 V a. Determine the overall cell reaction and calculate Ecell • (Use the lowest possible coefficients. Be sure to specify states such as (aq) or (s). If a box is not needed, leave it blank.) Eel = b. Calculate AG° and K for the cell reaction at 25°C. AG° = kJ K = c. Calculate Ecell at 25°C when [Za*] Ca2+ = 2.5 x 10-5 M. = 0.10 M and Ecell =
Consider the galvanic cell based on the following half-reactions: Zn2+ + 2e → Zn ɛ° = -0.76 V Cd²+ + 2e- → Cd ɛ° = -0.40 V a. Determine the overall cell reaction and calculate Ecell • (Use the lowest possible coefficients. Be sure to specify states such as (aq) or (s). If a box is not needed, leave it blank.) Eel = b. Calculate AG° and K for the cell reaction at 25°C. AG° = kJ K = c. Calculate Ecell at 25°C when [Za*] Ca2+ = 2.5 x 10-5 M. = 0.10 M and Ecell =
Chemistry: An Atoms First Approach
2nd Edition
ISBN:9781305079243
Author:Steven S. Zumdahl, Susan A. Zumdahl
Publisher:Steven S. Zumdahl, Susan A. Zumdahl
Chapter17: Electrochemistry
Section: Chapter Questions
Problem 135CWP: Consider a galvanic cell based on the following half-reactions: a. What is the expected cell...
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![Consider the galvanic cell based on the following half-reactions:
Zn²
2+
+ 2е — Zn €'
-0.76 V
Cd2+ + 2e –→ Cd e° = -0.40 V
a. Determine the overall cell reaction and calculate
E cell
(Use the lowest possible coefficients. Be sure to specify states such as (aq) or (s). If a box is not
needed, leave it blank.)
+
+
cell =
b. Calculate
AG° and
K for the cell reaction at 25°C.
AG° =
kJ
K =
c. Calculate
Ecell at 25°C when
Zn²+| = 0.10 M and
[ca*+]
Ca²+
2.5 х 10 5 М.
Ecell =](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F63602f98-b4b2-4aea-886c-bcfb08341f9b%2F03b46d66-6ea8-403a-b030-a26e3db3b1c4%2Fx3pbe2t_processed.png&w=3840&q=75)
Transcribed Image Text:Consider the galvanic cell based on the following half-reactions:
Zn²
2+
+ 2е — Zn €'
-0.76 V
Cd2+ + 2e –→ Cd e° = -0.40 V
a. Determine the overall cell reaction and calculate
E cell
(Use the lowest possible coefficients. Be sure to specify states such as (aq) or (s). If a box is not
needed, leave it blank.)
+
+
cell =
b. Calculate
AG° and
K for the cell reaction at 25°C.
AG° =
kJ
K =
c. Calculate
Ecell at 25°C when
Zn²+| = 0.10 M and
[ca*+]
Ca²+
2.5 х 10 5 М.
Ecell =
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