Ksp and hydroxide concentration?
For Ca(OH)2, Ksp=6.5x10^-6

i) What's the hydroxide concentration in a saturated solution known to be 0.10M in Ca2+ ?

ii) What would happen to the hydroxide concentration of the solution if the Ca2+ were increased? What would you physically observe?

Question

Ksp and hydroxide concentration?
For Ca(OH)2, Ksp=6.5x10^-6

i) What's the hydroxide concentration in a saturated solution known to be 0.10M in Ca2+ ?

ii) What would happen to the hydroxide concentration of the solution if the Ca2+ were increased? What would you physically observe?

anonymous · Answer

$$\color{green}{\begin{align} K_{sp} &=  [Ca^{2+}][OH^{1-}]^2\6.5 \times 10^{-6} &= (1.0) [OH^{1-}]^2\ [OH^{-1}] &= \sqrt{\frac{6.5 \times 10^{-6}}{1.0}} \&= \text{etc.} \ldots\end{align}}$$