The solubility of `Sb_(2)S_(3)` in water is `1.0 xx 10^(-8)` mol/litre at 298 K. What will be its solubility product:

Options

A. `108 xx 10^(-25)`
B. `1.0 xx 10^(-25)`
C. `144 xx 10^(-25)`
D. `126 xx 10^(-24)`

Answer

A

Explanation

`Sb_(2)S_(3) to underset (2x)(2Sb^(+2))+underset (3X) (3S^(--)) , K_(sp) = (2x)^(2).(3x)^(3)`
`K_(sp) = 108x^(5) , K_(sp) = 108 xx (1 xx 10^(-5))^(5) = 108 xx 10^(-25)` .