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Calculate the voltage of the following cell at nonstandard conditions: Cu | Cu2+ (0.150 M) || Cu2+...

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Question

Chemistry

Calculate the voltage of the following cell at nonstandardconditions:

Cu | Cu2+ (0.150 M) || Cu2+ (.0120 M) |Cu

Convert your final answer to mV.

Group of answer choices

64.9 mV

-32.4 mV

-16.2 mV

32.4 mV

Answer & Explanation Solved by verified expert
4.2 Ratings (673 Votes)

Cu(s) -------------> Cu^2+ (aq) + 2e^-        E0 = -0.34v

Cu^2+ (aq) + 2e^- -------> Cu(s)              E0 = 0.34v

-------------------------------------------------------------------------

Cu(s) + Cu^2+(aq) ------> Cu^2+(aq) + Cu(s)             E0cell = 0

n = 2

Ecell   = E0cell - 0.0592/n logQ

           = 0 -0.0592/2log[Cu^2+]/[Cu^2+]

           = -0.0296log0.15/0.012

           = -0.0296*1.0969

             = -0.0324v

            = -32.4mv   >>>>answer
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