Answered: How many hours are required to produce…

How many hours are required to produce 5.00 g of chromium metal from an acidic solution of potassium dichromate using a current of 0.50 A? Cr203 + 14H+ + 12e → 2Cr(s) + 7H20

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

Chapter18: Electrochemistry

Section: Chapter Questions

Problem 128AE: It took 150. s for a current of 1.25 A to plate out 0.109 g of a metal from a solution containing...

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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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Drie.
How many hours are required to produce 5.00 g of
chromium metal from an acidic solution of
potassium dichromate using a current of 0.50 A?
Cr203 + 14H+ + 12e →
2Cr(s) + 7H20
[?] hours
Round only at the end and use appropriate
significant figures.
Time (hour)
Enter

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