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

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Concept explainers

Electrolysis

Electrolysis is defined as the process of breaking down ionic compounds into their constituent elements by passing a direct electric current through the compound in a fluid state. The cathode reduces cations, while the anode oxidizes anions. An electrolyte, electrodes, and some form of external power source are the main components required for conducting electrolysis. A partition, such as an ion-exchange membrane or a salt bridge, may also be used, but this is optional. These are primarily used to prevent the products from diffusing near the opposing electrode.

Question

100%

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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