Chapter 7 Solutions

Question 1

Concentration

Answer 1

A measurement of the amount of solute that is dissolved in a specified amount of solution.

Question 2

Dilution

Answer 2

A process by which water (solvent) is added to a solution to increase the volume and decrease (dilute) the solute concentration.

Question 3

Dissociation

Answer 3

The separation of a solute into ions when the solute is dissolved in water.

Question 4

Electrolyte

Answer 4

A substance that produces ions when dissolved in water; its solution conducts electricity.

Question 5

Henry’s law

Answer 5

The solubility of a gas in a liquid is directly related to the pressure of that gas above the liquid.

Question 6

Insoluble salt

Answer 6

An ionic compound that does not dissolve in water.

Question 7

Molarity

Answer 7

The number of moles of solute in exactly 1L of solution.

Question 8

Nonelectrolyte

Answer 8

A substance that dissolves in water as molecule; its solution will not conduct an electrical current.

Question 9

Solubility

Answer 9

The maximum amount of solute that can dissolve in exactly 100g of solvent, usually water, at a given temperature.

Question 10

Soluble salt

Answer 10

An ionic compound that dissolves in water.

Question 11

Solute

Answer 11

A substance that is the smaller amount uniformly dispersed in other substances called the solute.

Question 12

Solution

Answer 12

A homogeneous mixture in which the solute is made of small particles (ions or molecules.)

Question 13

Solvent

Answer 13

The substance in which the solute dissolves; usually the component present in greatest amount.

Question 14

Strong electrolyte

Answer 14

A compound that ionizes completely when it dissolves in water. Its solution is a good conductor of electricity.

Question 15

Weak electrolyte

Answer 15

A substance that produces only a few ions along with many molecules when it dissolves in water. Its solution is a weak conductor of electricity.