chapter 13 vocab

Question 1

do not take part in chemical reaction, found both before an after in solution

Answer 1

spectator ion

Question 2

process in which ions are formed from solute molecules by attraction of solvent

Answer 2

ionization

Question 3

separation of ion that occurs when an ionic compound dissolves

Answer 3

dissociation

Question 4

substances that yield ions, conduct electric current

Answer 4

electrolytes

Question 5

depend on concentration of solute particles but not on their identity

Answer 5

colligative

Question 6

substance that has little tendency to become a gas

Answer 6

nonvolatile

Question 7

movement of water through a semipermeable membrane from a side of lower solute concentration to a side of higher solute concentration.

Answer 7

osmosis

Question 8

soluble solid

Answer 8

precipitant

Question 9

referring to a membrane that allows some substances to enter while keeping others out

Answer 9

semipermeable membrane

Question 10

examples of colligative properties

Answer 10

boiling point elevation, lowering vapor pressure, freezing point depression

Question 11

to determine the molar mass of a solute by using colligative properties, you must know the

Answer 11

mass of the solute

Question 12

when nonvolatile, nonionic solutes are added to water, they

Answer 12

depress freezing point and elevate boiling point

Question 13

the external pressure that must be applied to stop osmosis

Answer 13

osmotic pressure

Question 14

the vapor pressure of pure water is ____ than the vapor pressure for an aqueous solution

Answer 14

greater

Question 15

the boiling point for a non electrolyte will be ______ than for a strong electrolyte

Answer 15

lower

Question 16

why is salt poured on icy roads

Answer 16

lower the freezing point of water