Using your value of Ksp, and starting with an equilibrium system consisting of a saturated solution of calcium hydroxide, predict whether the solubility will increase or decrease it you add a. A. 5.00 mL of 0.100 M HNO3 Ksp = 2.966610-5 b. 5.00 mL of 0.100 M NaOH C. 5.00 mL of 0.100 M Ca(NO3)2

(A) Solubility will increase.

(B) Solubility will decrease.

(C) Solubility will decrease.

Explanation:

a) According to Le Chatelier's Principle when a change is introduced in a reaction system at equilibrium, the system responds by the reaction shifting in the direction to counter the change introduced.

When the change introduced is addition of acid, some are consumed due to it and the system would respond by reaction shifting towards creation of more in the system by increased dissolution. Thus solubility increase.

(b) When are added, the reaction shifts to counter the change introduced of increased by shifting to side that decreases the increased . That happens by reaction shifting towards some precipitating back. Hence solubility decreases.

(c) The change introduced is addition of which will be countered by reaction shifting to side that decreases increased , which happens by some precipitating back. Hence solubility decreases.