Unit 6

Question 1

pH

Answer 1

Hydrogen ion concentration

Question 2

Titration

Answer 2

Method used to determine the concentration of a substance in a solution.

Question 3

Dissociation

Answer 3

The separation of ions that occur when an ionic compound dissolves.

Question 4

Electrolyte

Answer 4

A substance that dissolves in water to give the solution the ability to conduct electricity.proton acceptors identified by release of hydroxide ions.

Question 5

Base

Answer 5

Proton acceptors identified by release of hydroxide ions.

Question 6

H3O+

Answer 6

Hydronium

Question 7

Molarity

Answer 7

Number of moles of solute in one liter of solution

Question 8

Molality

Answer 8

The concentration of a solution expressed in moles of solute per kilogram of solvent

Question 9

Colligative Properties

Answer 9

Depend on the concentration of solute particles but not on their identity.

Question 10

Acid

Answer 10

Proton donors that yield hydronium ions in water solution

Question 11

Concentration

Answer 11

The amount of solute in a given amount of solvent in a solution.

Question 12

Boiling Point Elevation

Answer 12

The difference between the boiling points of the pure solvent and a nonelectrolyte solution of that solvent and is directly proportional to the molal concentration of the solution.

Question 13

Freezing Point Depression

Answer 13

The difference between the freezing points of the pure solvent and a solution of a non electrolyte in that solvent, and is directly proportional to the molal concentration of the solution.

Question 14

Kf

Answer 14

Molal Freezing point constant

Question 15

Kb

Answer 15

Molal Boiling point constant

Question 16

Buffer

Answer 16

Solutions that are used as a means of keeping pH at a nearly constant value in a wide variety of chemical applications.

Question 17

Solubility

Answer 17

The capability to dissolve.

Question 18

End point

Answer 18

The point in a titration at which no more titrant should be added. It is determined, for example, by a color change in an indicator or by the appearance of a precipitate.

Question 19

Neutralization

Answer 19

A chemical reaction in which an acid and a base react to form a salt.

Question 20

pOH

Answer 20

Hydroxide ion concentration

Question 21

OH-

Answer 21

Hydroxide ion