1. What properties of solubility and/or Ksp are demonstrated by the plots you made?
I. Substances with higher solubility have higher Ksp values
II. The solubility of a substance is reduced by the presence of a common ion
III. The Ksp of a substance is affected by its surroundings (such as temperature or pressure), but not by concentrations within the solution itself.

• I and II

• I and III

• I, II, and III

• II and III

2. Based on the reaction MX(s) ↔ M⁺ (aq) + X^- (aq), which of the following is true with respect to the common ion effect?
I. The solubility of MX (s) is increased with an increase of M⁺ (aq).
II. The solubility of MX (s) is decreased with an increase of X^- (aq).
III. The solubility of MX (s) is decreased with an increase of M⁺ (aq).
IV. The solubility of MX (s) is increased with an increase of X^- (aq).

• I and II

• I and IV

• II and III

• III and IV

3. Which of the following factors will affect the amount of solute that can dissolve in a given amount of solvent?

• All of these.

• Changing the temperature of the solution.

• Increasing the surface area of the solute.

• Stirring the solution.