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

Options

A. `s=(256K_(sp))^(1//5)`
B. `s=(128K_(sp))^(1//4)`
C. `s=(K_(sp)//128)^(1//4)`
D. `s=(K_(sp)//256)^(1//5)`

Answer

D

Explanation

`MX_(4)hArrunderset(s)M^(4+)+underset(4s)4X^(-)`
`K_(sp)=[s][4s]^(4)=256s^(5)`
`:.s=((K_(sp))/(256))`