What will happen to the Ksp value of Al(OH)3 when sodium hydroxide is added to the solution? Explain why Without doing a calculation, predict which of the following has the greatest molar solubility in water? AgCl (Ksp = 1.8 x 10^-10) AgBr (Ksp = 5.0 x 10^-13) AgI (Ksp = 8.3 x 10^-17) Solution 1) Solubility equation of Al(OH)3 is: Al(OH)3   <—>   Al3+   (aq) + 3 OH- (aq) Adding NaOH is like adding product (OH-) Adding product will shift the reaction in the direction of reactant as per Le chatelier Principle So, Equilibrium moves to reactant side This will decrease solubility Answer: solubility decreases 2) All of them are of same form AX So, the one with the greatest value of Ksp will have greatest molar solubility Answer: AgCl .

1. What will happen to the Ksp value of Al(OH)3 when sodium hydroxide is added to the solution?
Explain why
Without doing a calculation, predict which of the following has the greatest molar solubility in
water?
AgCl (Ksp = 1.8 x 10^-10)
AgBr (Ksp = 5.0 x 10^-13)
AgI (Ksp = 8.3 x 10^-17)
Solution
1)
Solubility equation of Al(OH)3 is:
Al(OH)3  <—>  Al3+  (aq) + 3 OH- (aq)
Adding NaOH is like adding product (OH-)
Adding product will shift the reaction in the direction of reactant as per Le chatelier Principle
So, Equilibrium moves to reactant side
This will decrease solubility
Answer: solubility decreases
2)
All of them are of same form AX
So, the one with the greatest value of Ksp will have greatest molar solubility
Answer: AgCl