Write the formula for the solubility of a salt of type $AB_2$.

Assign $A, B, C, D$ from the given type of reaction.
$FeS \downarrow + 2HCl \longrightarrow FeCl_2 + H_2S \uparrow$

The saturated solution of $Ag_2SO_4$ is $2.5 \times 10^{-2} \ M$. Its solubility product $(K_{sp})$ is

Calculate the solubility in $\text{mol dm}^{-3}$ of a sparingly soluble salt $BA$ at $293 \text{ K}$ if its solubility product constant $(K_{sp})$ is $8.56 \times 10^{-5}$ at the same temperature.

Let the solubility of an aqueous solution of $Mg(OH)_2$ be $x$,then its $K_{sp}$ is:

What is the molar solubility of $Ag_{2}CO_{3}$ $(K_{sp} = 4 \times 10^{-13})$ in $0.1 \ M \ Na_{2}CO_{3}$ solution?