If $K_{sp}$ is the solubility product of $Al(OH)_3$,its solubility is expressed by the formula:

The ${K_{sp}}$ of $BaSO_4$ is $1.1 \times 10^{-10}$. Will a precipitate form when equal volumes of $2 \times 10^{-4} \ M \ BaCl_2$ and $5.0 \times 10^{-3} \ M \ H_2SO_4$ solutions are mixed? Explain by calculation.

Assertion : Addition of silver ions to a mixture of aqueous sodium chloride and sodium bromide solution will first precipitate $AgBr$ rather than $AgCl$.
Reason : $K_{sp}$ of $AgCl < K_{sp}$ of $AgBr$.

Which of the following has the maximum solubility? ($K_{sp}$ values are given in parentheses.)

The solubility product of $PbCl_2$ at $298 \ K$ is $1 \times 10^{-6}$. Its solubility in $mol/L$ is:

$M_{3}A_{2}$ is a sparingly soluble salt of molar mass $y \text{ g mol}^{-1}$ and solubility $x \text{ g L}^{-1}$. The ratio of the molar concentration of the anion $(A^{3-})$ to the solubility product of the salt is