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Find the concentration of H+ ion that must be maintained in a saturated solution of H2S (0.1 M) so as to precipitate CdS not ZnS Given: [Cd2+]=[Zn2+]=(0.1 M) initially.Ksp(CdS)=8×10−27Ksp(ZnS)=1×10−21Ksp(H2S)=1.1×10−21

Answer»

Find the concentration of H+ ion that must be maintained in a saturated solution of H2S (0.1 M) so as to precipitate CdS not ZnS

Given: [Cd2+]=[Zn2+]=(0.1 M) initially.

Ksp(CdS)=8×10−27Ksp(ZnS)=1×10−21Ksp(H2S)=1.1×10−21


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