InterviewSolution
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InterviewSolution
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For which of the following sparingly soluble salt, the solubility (S) and solubility product `(K_(sp))` are related by the expression `S = (K_(sp)//4)^(1//3)`A. `BaSO_(4)`B. `Ca_(3)(PO_(4))_(2)`C. `Hg_(2)Cl_(2)`D. `Ag_(3)PO_(4)` |
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Answer» Correct Answer - C `BaSO_(4) hArr Ba^(2+) + SO_(4)^(2-) , K_(sp) = S^(2), S = sqrt(K_(sp))` `Ca_(3)(PO_(4))_(2) hArr 3Ca^(2+) + 2PO_(4)^(3-), K_(sp) = (3S)^(3) xx (2S)^(2) = 108 S^(5)` `:. S = ((K_(sp))/(108))^(1//5)` `Hg_(2)Cl_(2) hArr Hg_(2)^(2+) + 2Cl^(-), K_(sp) = S xx (2S^(2)) = 4S^(3)` `:. S = ((K_(sp))/(4))^(1//3)` `Ag_(3)PO_(4)rarr 3Ag^(+) + PO_(4)^(3-), K_(sp) = (3S)^(3) xx S = 27 S^(4)` `:. S = ((K_(sp))/(27))^(1//4)` `CuS hArr Cu^(2+) + S^(2-), K_(sp) = S^(2), S = sqrt(K_(sp))`. |
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