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Calculate the potential of a half cell h...

Calculate the potential of a half cell having reaction :`Ag_2S(s)+2e^(-)iff2Ag(s)+S^(2-)(aq)` in a solution buffered at `pH=3` and which is also saturated with 0.1 `MH_2`S(aq): [Given:`K_(sp)(Ag_2S)=10^(-49),K_(a1)=10^(-8)*K_(a2)=1.1 X 10^(-13)]` E=( Ag^+// Ag^+2) =0.8

A

1.18

B

0.19

C

-0.19V

D

none of these

Text Solution

Verified by Experts

The correct Answer is:
C
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