$1.$ A student measures the molar solubility of magnesium hydroxide in a water solution to be $1\mathrm{.}52{10}^{-4}M.$ Based on her data, the solubility product constant for this compound is$...$

$2.$ A student measures the $C{N}^{-}$concentration in a saturated aqueous solution of nickel$($II$)$ cyanide to be $3\mathrm{.}82{10}^{-8}M.$ Based on her data, the solubility product constant for nickel$($II$)$ cyanide is$...$

$3.$ The solubility of $Zn(OH{)}_2$ is measured and found to be $2\mathrm{.}18{10}^{-4}\frac{g}{L}.$ Use this information to calculate a $K_{sp}$ value for zinc hydroxide.

$K_{sp}=$

$4.$ The solubility of $A{g}_{2}S{O}_3$ is measured and found to be $4\mathrm{.}49{10}^{-3}\frac{g}{L}.$ Use this information to calculate a $K_{sp}$ value for silver sulfite.

$K_{sp}=$

$5.$ The molar solubility of silver sulfite in a water solution is$...$ M

$6.$ The molar solubility of cobalt$($II$)$ hydroxide in a water solution is$...$

M$.$

Answer all pls$!!!$ I need help in all questions.