The `K_(sp)` of the sparingly soluble salt MX is `2.50 xx 10^(-9) M^2` at 298K. The solubility of this salt at this temperature is `x xx 10^(-5) mol L^(-1)`. The value of x is

Explanation

`MX_((s)) `K_(sp) = [M^+][X]`
`therefore K_(sp) = S^2`
`therefore S^2 = 2.50 xx 10^(-9)`
`therefore S^2 = 2.50 xx 10^(-9)`
`= 5.00 xx 10^(-5) mol L^(-1)`
`therefore` Value of `x = 5`