6. Suppose you wish to separate Cd²+ from Zn²+ by electrodeposition of metallic cadmium onto an inert cathode from an aqueous solution containing 0.015 M Cd(NH3)4²+, 0.010 M Zn(NH3)4²+, and 1.00 M uncomplexed NH3. You want to deposit 99.99% of the Cd while not depositing any Zn. What is the allowable range of potentials that you can use? Cd(NH3)4²+ + 2 e Cd(s) + 4 NH3 Zn(NH3)4²+ + 2e = Zn(s) + 4 NH3 E = -0.61 V vs. SHE E = -1.04 V vs. SHE
6. Suppose you wish to separate Cd²+ from Zn²+ by electrodeposition of metallic cadmium onto an inert cathode from an aqueous solution containing 0.015 M Cd(NH3)4²+, 0.010 M Zn(NH3)4²+, and 1.00 M uncomplexed NH3. You want to deposit 99.99% of the Cd while not depositing any Zn. What is the allowable range of potentials that you can use? Cd(NH3)4²+ + 2 e Cd(s) + 4 NH3 Zn(NH3)4²+ + 2e = Zn(s) + 4 NH3 E = -0.61 V vs. SHE E = -1.04 V vs. SHE
General Chemistry - Standalone book (MindTap Course List)
11th Edition
ISBN:9781305580343
Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
Publisher:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
Chapter21: Chemistry Of The Main-group Elements
Section: Chapter Questions
Problem 21.164QP
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