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CBSE Class 12-science Answered

The reduction potentials of
Asked by Ujjwal Kumar | 22 Sep, 2010, 05:07: PM
answered-by-expert Expert Answer
Oxidation is taking place at Cu electrode and reduction is at Ag.
Hence,
Cu|Cu2+||Ag+|Ag
Cu + 2Ag+......>Cu2+ + 2Ag
 
here, n=2
 
and, Eo=.80-.34=.46V
 
and by using the formula:
 
cell = Eo - (.0592/2) log10 (Cu2+/(Ag+)2 )
 
0=.46V-.0592/2 log(.1/(Ag+)2)
 
Ag+=5*10-9 M
Answered by | 22 Sep, 2010, 08:14: PM
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