A saturated solution of #Mg(OH)_2# in water has pH = 10.32. How do you calculate the Ksp of #Mg(OH)_2#?
You can do it like this:
Magnesium hydroxide is sparingly soluble and in solution the solid is in equilibrium with the aqueous ions:
We are told the
From the equation you can see that
The expression for
Putting in the numbers: