Calcium metal can be obtained by the direct electrolysis of molten Cacl2, at a voltage of 3.2 volts. How many kilojoules of electrical energy are required to obtain 5.28 kg of calcium? Atomic Wt. of Ca = 40.078 g/mol %3D

Calcium metal can be obtained by the direct electrolysis of molten Cacl2, at a voltage of 3.2 volts. How many kilojoules of electrical energy are required to obtain 5.28 kg of calcium? Atomic Wt. of Ca = 40.078 g/mol %3D

Chemistry: Principles and Reactions

8th Edition

ISBN:9781305079373

Author:William L. Masterton, Cecile N. Hurley

Publisher:William L. Masterton, Cecile N. Hurley

Chapter17: Electrochemistry

Section: Chapter Questions

Problem 84QAP: Calcium metal can be obtained by the direct electrolysis of molten CaCl2, at a voltage of 3.2 V. (a)...

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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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Calcium metal can be obtained by the direct electrolysis of molten Cac/2 , at a voltage of 3.2 volts. How many
kilojoules of electrical energy are required to obtain 5.28 kg of calcium?
Atomic Wt. of Ca = 40.078 g/mol
%3D

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