Q.
The standard EMF for the cell reaction, Zn+Cu2+⇔Cu+Zn2+ is 1.10 volt at 25∘C. The EMF for the cell reaction, when 0.1 Cu2+ and 0.1MZn2+ solutions are used, at 25°C is:
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a
1.10V
b
0.110V
c
-1.10V
d
-0.110V
answer is A.
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Detailed Solution
Ecell =Ecell ∘+0.0592logCu2+Zn2+=1.10+0=1.10
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