Answer:
The molar solubility of [tex]Ni(OH)_2[/tex] in water [tex]7.93\times10^{-6} mol/L[/tex].
Explanation:
[tex]Ni(OH)_2\rightleftharpoons Ni^{2+}+2OH^-[/tex]
S 2S
Solubility of Nickel hydroxide =[tex]K_{sp}=2.0\times 10^{-15}[/tex]
[tex]K_{sp}=S\times 2S^{2}=4S^3[/tex]
[tex]2.0\times 10^{-15}=4S^3[/tex]
[tex] S=7.93\times10^{-6} mol/L[/tex]
The molar solubility of [tex]Ni(OH)_2[/tex] in water [tex]7.93\times10^{-6} mol/L[/tex].