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Question: What will be the emf of the following concentration cell at \(25ºC?\) \[Ag_{(s)}|AgNO_{3}(0.01M)||A...

What will be the emf of the following concentration cell at 25ºC?25ºC?

Ag(s)∣AgNO3(0.01M)∣∣AgNO3(0.05M)∣Ag(s)Ag_{(s)}|AgNO_{3}(0.01M)||AgNO_{3}(0.05M)|Ag_{(s)}

A

0.828V0.828V

B

0.0413V0.0413V

C

−0.0413V- 0.0413V

D

−0.828V- 0.828V

Answer

0.0413V0.0413V

Explanation

Solution

E=Eº−0.591nlog⁡QE = Eº - \frac{0.591}{n}\log Q

Eº=0Eº = 0for all concentration cells

=0−0.05911log⁡(0.010.05)=0.0413V= 0 - \frac{0.0591}{1}\log\left( \frac{0.01}{0.05} \right) = 0.0413V