A cell employs the following half-reactions. Ni(s) Eº2+ = -0.25 V Cr(s) E°3+ = -0.74 V Ni Calculate the potential if [Ni2+] = 1.0 x 104 and [Cr³+] = 2.0 x 10-³ M. Ni²+ (aq) + 2 e Cr³+ (aq) + 3 e

A cell employs the following half-reactions. Ni(s) Eº2+ = -0.25 V Cr(s) E°3+ = -0.74 V Ni Calculate the potential if [Ni2+] = 1.0 x 104 and [Cr³+] = 2.0 x 10-³ M. Ni²+ (aq) + 2 e Cr³+ (aq) + 3 e

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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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

A cell employs the following half-reactions.
Ni(s) Eº2+ = -0.25 V
Cr(s) E°3+ = -0.74 V
Ni
Calculate the potential if [Ni2+] = 1.0 x 104 and [Cr³+] = 2.0 x 10-³ M.
Ni²+ (aq) + 2 e
Cr³+ (aq) + 3 e

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