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

Calculate the voltage of the following cell at nonstandard conditions:

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

Solutions

Expert Solution

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

queen_honey_blossom answered 6 months ago

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