(C) Iron (D) Mercury What is the standard reduction potential for Cr²+ (aq) to Cr(s)? Half-Reaction Cr³+ (aq) + 3 e → Cr(s) Cr³+ (aq) + e→Cr²+ (aq) (A) -0.23 V (C) -1.23 V Eº, V -0.73 -0.50 (B) -0.85 V (D) -1.69 V

(C) Iron (D) Mercury What is the standard reduction potential for Cr²+ (aq) to Cr(s)? Half-Reaction Cr³+ (aq) + 3 e → Cr(s) Cr³+ (aq) + e→Cr²+ (aq) (A) -0.23 V (C) -1.23 V Eº, V -0.73 -0.50 (B) -0.85 V (D) -1.69 V

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

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(C) Iron
(D) Mercury
-0. What is the standard reduction potential for Cr2+ (aq) to
Cr(s)?
Half-Reaction
Cr³+ (aq) + 3 e → Cr(s)
Cr³+ (aq) + e→Cr²+ (aq)
(A) -0.23 V
(C) -1.23 V
Eº, V
-0.73
-0.50
(B)
-0.85 V
(D) -1.69 V
11. What is observed if a piece of lead is placed in an
aqueous solution of Cu(NO3)2?
Half-Reaction
Eº, V

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