Answer and Explanation: Ksp is the Solubility Product Constant and is the equilibrium constant that happens when a solid is dissolved in an aqueous solution.
The dissolution of chromium (III) hydroxide:
[tex]Cr(OH)_{3}_{(s)}[/tex] ⇄ [tex]Cr^{3+}_{(aq)} + 3OH^{-}_{(aq0)}[/tex]
Every equilibrium constant is of the form:
[tex]K = \frac{[products]^{coefficient}}{[reagents]^{coefficient}}[/tex]
Then,
[tex]K_{sp} = [Cr^{3+}_{(aq)}][OH^{-}_{aq}]^{3}[/tex]
The reagent is not included because solids don't take part in euqilibrium constants.
So, Ksp of chromium (III) hydroxide is [tex]K_{sp} = [Cr^{3+}_{(aq)}][OH^{-}_{aq}]^{3}[/tex]
