If a slightly soluble salt has a solubility product expression of Ksp =[ Al3+][OH-]3 , which of the following is the balanced equilibrium equation for this salt?
A. Al3+(aq)+ 3 OH-(aq) ⇌ Al(OH)3 (s)
B. Al(OH)3(s) ⇌ Al3+ (aq) + 3 OH- (aq)
C. Al3OH(s) ⇌ 3Al3+(aq) + OH- (aq)
D. Al(OH)3(s) ⇌ 3Al3+ (aq) + OH- (aq)
Answer:B
If a slightly soluble salt has a solubility product expression of Ksp =[ Al3+][OH-]3 , which of the following is the balanced equilibrium equation for this salt?
A. Al3+(aq)+ 3 OH-(aq) ⇌ Al(OH)3 (s) B. Al(OH)3(s) ⇌ Al3+ (aq) + 3 OH- (aq) C. Al3OH(s) ⇌ 3Al3+(aq) + OH- (aq) D. Al(OH)3(s) ⇌ 3Al3+ (aq) + OH- (aq)