February 21, 2017

Homework Help: Chemistry

Posted by Katherine on Sunday, June 3, 2012 at 8:01pm.

Consider two cells, the first with Al and Ag electrodes, and the second with Zn and Ni electrodes, each in appropriate 1.00M solutions of their ions.

If 2.10g of metal is plated in the voltaic cell, how much metal is plated in the electrolytic cell?

Another plated question... I'm sorry, normally I include an explanation of what I'm confused on but I just do not know how to approach this problem at all. I know that when Ag and Ni get plated they will have a 2.98 V and when Ag and Zn get played they have a 1.98 V

Reduction Half Reaction & Standard Potential Ered°
Al3+(aq) + 3e– → Al(s) –1.66 V
Ag+(aq) + e– → Ag(s) +0.80
Zn2+(aq) + 2e– → Zn(s) –0.76
Ni2+(aq) + 2e– → Ni(s) –0.26

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