A galvanic cell using Mg / Mg*" and Cu / Cu" half-cells operates under standard-state conditions at 25 °C, and each compartment has a volume of 227 mL. The cell delivers 0.31 A for 32.1 h. (a) How many grams of Cu are deposited? g Cu

A galvanic cell using Mg / Mg*" and Cu / Cu" half-cells operates under standard-state conditions at 25 °C, and each compartment has a volume of 227 mL. The cell delivers 0.31 A for 32.1 h. (a) How many grams of Cu are deposited? g Cu

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 120AE

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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.

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A galvanic cell using Mg / Mg*" and Cu / Cu" half-cells operates under standard-state conditions at 25
°C, and each compartment has a volume of 227 mL. The cell delivers 0.31 A for 32.1 h.
(a) How many grams of Cu are deposited?
g Cu

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An electrolysis experiment is performed to determine the value of the Faraday constant (number of coulombs per mole of electrons). In this experiment, 28.8 g of gold is plated out from a AuCN solution by running an electrolytic cell for two hours with a current of 2.00 A. What is the experimental value obtained for the Faraday Constant?
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