How long must a current of 5 amperes (A) be maintained to electroplate 60 g of calcium from the molten CaCl₂. Given that the atomic mass of Ca is 40.078. A. O 5.7786 x 104 hours B. O 18.000 hours C. O 12.7786 x 104 hours D. O 16.000 hours

How long must a current of 5 amperes (A) be maintained to electroplate 60 g of calcium from the molten CaCl₂. Given that the atomic mass of Ca is 40.078. A. O 5.7786 x 104 hours B. O 18.000 hours C. O 12.7786 x 104 hours D. O 16.000 hours

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

How long must a current of 5 amperes (A) be maintained to electroplate 60 g of calcium from the molten CaCl₂. Given that the atomic
mass of Ca is 40.078.
A.
5.7786 x 104 hours
B.
18.000 hours
C.
12.7786 x 104 hours
D.
16.000 hours

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