Chapter 17

Question 1

When an ionic compound is insoluble or slightly soluble

The equilibrium constant for this type of reaction is called the

Answer 1

an equilibrium is established

solubility−product constant, Ksp

Question 2

Qualitatively, we can use Le Châtelier’s principle to predict

Answer 2

that the reaction will shift in the reverse direction when M+ or X− is added, reducing the solubility.

Question 3

Fractional precipitation is the

Answer 3

technique of separating two or more ions from a solution by adding a reactant that precipitates first one ion, then another ion, and so forth

Question 4

The solubility of an insoluble salt can be manipulated by

Answer 4

adding a species that reacts with either the cation or the anion.

Question 5

When a salt contains the conjugate base of a weak acid, the pH will affect

Answer 5

the solubility of the salt

Question 6

Some cations form soluble complex ions. Their formation increases the

Answer 6

solubility of a salt containing those cations