Question

The solubility of a sparingly soluble compound `MX_(2)` at `25^(@)C` is `5.0xx10^(-3) mol//L`. Its solubility product at that temperature is
A. `25xx10^(-6)`
B. `5.0xx10^(-11)`
C. `5.0xx10^(-7)`
D. `1.25xx10^(-9)`

Answer 1

Correct Answer - C
For salts of the type `MX_(2)`:
`K_(sp)=4s^(3)`
`=4(5.0xx10^(-3))^(3)=5.0xx10^(-7)`