The standard reduction potential for the following two reactions are given: AgCl+e−→Ag(s)+Cl−2(aq.);E∘=0.22V....(i) Ag+(aq.)+e−→Ag(s)E∘=0.80V....(ii) The solubility product of AgCl under standard condition will be:
A
1.613×10−5M2
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B
1.535×10−8M2
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C
3.213×10−10M2
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D
1.535×10−10M2
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Solution
The correct option is C1.535×10−10M2 From eqs. (i) and (ii), AgCl(s)⇌Ag++Cl−;E∘=0.22−0.80=−0.58V Ecell=E∘cell−0.05912log[Ag+][Cl−] 0=−0.58−0.05912log[Ag+][Cl−] Ksp=[Ag+][Cl−]=1.535×10−10M2.