The solubility of AgCN in a buffer solution of pH = 3 is x. The value of x is:Assume:No cyano complex is formed : KspAgCN=22x10−16and KaHCN=6.2x10−10

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1.6×10−6

1.9×10−5

2.2×10−16

0.625×10−6

answer is B.

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Detailed Solution

AgCN⇌Ag⊕+CNΘ H⊕+CNΘ⇌H++CNΘKsp×1Ka=Ag+CNΘ×[HCN]H+CNΘ2.2×10-16×16.6×10-10=Δ.Δ10-3Δ2=10-830 Δ=1.9×10-5

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