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How long will it take for a uniform current of 6.00 A to deposit 78.0 g gold (197.0 g/mol) from a solution of AuCl4 ?

Chemistry: The Molecular Science

5th Edition

ISBN:9781285199047

Author:John W. Moore, Conrad L. Stanitski

Publisher:John W. Moore, Conrad L. Stanitski

Chapter17: Electrochemistry And Its Applications

Section: Chapter Questions

Problem 50QRT

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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

How long will it take for a uniform current of 6.00 A to deposit 78.0 g gold (197.0 g/mol) from a solution of AuCl4™ ?
Select one:
O t = 5.31 h
t = 1.77 h
t = 10.6 h
Ot=0.59 h

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