Solutions

Question 1

alloy

Answer 1

a mixture composed of two or more elements, at least one of which is a metal

Question 2

aqueous

Answer 2

of or containing water, typically as a solvent or medium

Question 3

boiling point

Answer 3

the temperature at which the vapor pressure of a liquid is just equal to the external pressure on the liquid

Question 4

boiling point elevation

Answer 4

the difference in temperature between the boiling point of a solution and the boiling point of the pure solvent

Question 5

colligative properties

Answer 5

a property of a solution that depends only upon the number of solute particles, and not upon their identities; boiling point elevation, freezing point depression, and vapor pressure are colligative properties

Question 6

colloid

Answer 6

a mixture whose particles are intermediate in size between those of a suspension and a solution

Question 7

concentrated

Answer 7

a solution containing a large amount of solution

Question 8

concentration

Answer 8

a measurement of the amount of solute that is dissolved in a given quantity of a solvent; usually expressed mol/L

Question 9

dilute

Answer 9

a solution that contains a small amount of solute

Question 10

freezing point depression

Answer 10

the difference in temperature between the freezing point of a solution and the freezing point of the pure solvent

Question 11

heterogeneous

Answer 11

a mixture that is not uniform in composition

Question 12

homogenous

Answer 12

a mixture that is uniform in composition

Question 13

insoluble

Answer 13

materials with low solubility

Question 14

miscible

Answer 14

describes liquids that dissolve in one another in all proportions

Question 15

mixture

Answer 15

a physical blend of two or more substances that are not chemically combined

Question 16

molarity (M)

Answer 16

the concentration of solute in a solution expressed as the number of miles of solute dissolved in 1 liter of solution

Question 17

parts per million (ppm)

Answer 17

mol solute
———— x 1,000,000
mol solution

Question 18

percent by mass

Answer 18

g solute
———- x 100
g solution

Question 19

percent by volume

Answer 19

L of solute
———— x 100
L of solution

Question 20

precipitate

Answer 20

a solid that forms and settles out of a liquid mixture

Question 21

saturated

Answer 21

solution contains the max quantity of solute that dissolves at the temperature

Question 22

solubility

Answer 22

amount of a substance that dissolves in a given quantity of solvent at specified conditions of temperature and pressure to produce a saturated solution

Question 23

soluble

Answer 23

materials with high solubility

Question 24

solution

Answer 24

a homogeneous mixture; consists of solutes dissolved in a solvent

Question 25

solute

Answer 25

dissolved particles in a solution

Question 26

solvent

Answer 26

the dissolving medium in a solution

Question 27

supersaturated

Answer 27

unstable, temporary

Question 28

suspension

Answer 28

a mixture from which some of the particles settle out slowly upon standing

Question 29

Tyndall Effect

Answer 29

scattering light of particles

Question 30

unsaturated

Answer 30

contains less than the max amount of solute that can dissolve at a particular temperature