You have a 4.5 M solution of Ca(OH)_2 What is the concentration of OH?

Jun 14, 2016

$C a {\left(O H\right)}_{2} \left(s\right) r i g h t \le f t h a r p \infty n s C {a}^{2 +} + 2 H {O}^{-}$

The solution is nominally $9.0$ $m o l \cdot {L}^{-} 1$ with respect to hydroxide.

Explanation:

Of course, we should probably look at the solubility of calcium hydroxide in water, and I think it's a sparingly soluble salt.

This site reports that ${K}_{s p}$ $C a {\left(O H\right)}_{2}$, $= 5.5 \times {10}^{-} 6$.

Calcium hydroxide is thus much too insoluble to support such a concentration. The question is unrealistic.