What is the Ksp expression for Al(OH)3 (s) &gt; Al+3(aq)&nbsp; + 3 OH- (aq)

Question: "What is the Ksp expression for Al(OH)3 (s)..."

High School

Answered question

2022-04-13

What is the Ksp expression for Al(OH)3 (s) > Al+3(aq) + 3 OH- (aq)

Answer & Explanation

user_27qwe

Skilled2023-04-27Added 375 answers

The Ksp expression for the dissociation of solid Al(OH)

_{3}

into Al

^{3 +}

and OH

^{-}

ions in aqueous solution can be written as:

K_{s p} = [A l^{3 +}] [O H^{-}]^{3}

where

K_{s p}

is the solubility product constant, and the square brackets denote the molar concentrations of the ions in solution at equilibrium.
This expression indicates that the equilibrium constant for the reaction
Al(OH)

_{3}

(s)

⇌

^{3 +}

(aq) + 3 OH

^{-}

(aq)
is equal to

K_{s p}

.
In other words, the product of the concentrations of the Al

^{3 +}

and OH

^{-}

ions raised to their stoichiometric coefficients in the balanced chemical equation is equal to the solubility product constant for Al(OH)

_{3}

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