1.

The molar solubility (in mol L^(-1)) of a sparingly soluble salt MX_(4) is 's'. The corresponding solubility product is K_(sp). 's' is given in terms of K_(sp) by the relation :

Answer»

`s=(256 K_(sp))^(1//5)`
`s=(128 K_(sp))^(1//4)`
`s=(K_(sp)//128)^(1//4)`
`s=(K_(sp)//256)^(1//5)`

SOLUTION :`MX_(4)hArr M^(+)+4X^(-)`
If SOLUBILITY is s,
`[M^(+)]=s, [X^(-)]=4s`
`K_(sp)=[M^(+)][X^(-)]^(4)=(s)(4s)^(4)=256 s^(5)`
`s=((K_(sp))/(256))^(1//5)` .


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