(a) Calculate the emf for the given cell at 25 °C:Cr | Cr3+ (0.1 M)|| Fe2+ (0.01 M) | Fe[Given:E0Cr3+/Cr= -0.74 V, E0Fe2+/Fe = -0. 44 V](b) Calculate the strength of the current required to deposit 1.2<g of magnesium from molten MgCl2 in 1 hour.[1 F = 96,500 C mol-1; Atomic mass: Mg = 24.0]
(a) Calculate the emf for the given cell at 25 °C:Cr | Cr3+ (0.1 M)|| Fe2+ (0.01 M) | Fe[Given:E0Cr3+/Cr= -0.74 V, E0Fe2+/Fe = -0. 44 V](b) Calculate the strength of the current required to deposit 1.2<g of magnesium from molten MgCl2 in 1 hour.[1 F = 96,500 C mol-1; Atomic mass: Mg = 24.0]
Chemistry: Principles and Practice
3rd Edition
ISBN:9780534420123
Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Publisher:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Chapter18: Electrochemistry
Section: Chapter Questions
Problem 18.98QE
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(a) Calculate the emf for the given cell at 25 °C:
Cr | Cr3+ (0.1 M)|| Fe2+ (0.01 M) | Fe
[Given:E0Cr3+/Cr= -0.74 V, E0Fe2+/Fe = -0. 44 V]
(b) Calculate the strength of the current required to deposit 1.2<g of magnesium from molten MgCl2 in 1 hour.
[1 F = 96,500 C mol-1;
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