1.

Solubility product for salt AB_(2) is 4 xx 10^(-12). Calculate solubility

Answer»

`1 XX 10^(-3)` gm mol/litre
`1 xx 10^(-5)` gm mol/litre
`1 xx 10^(-4)` gm mol/litre
`1 xx 10^(-2)` gm mol/litre

Solution :`{:(AB_(2)hArr,A^(2+),+,2B^(-)),(,(S),,(2S)^(2)):}`
`K_(sp) = 4S^(3)`
`S = 3sqrt((K_(sp))/(4)) = 3sqrt((4 xx 10^(-12))/(4)) = 1 xx 10^(-4)` gm. mol/litre


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