Chapter 8 exam

Question 1

mass to mass ratios

Answer 1

mg/kg

Question 2

mass to volume ratios

Answer 2

mg/L

Question 3

molarity

Answer 3

moles of solute / liter of solution

Question 4

dilutions formula 1

Answer 4

n initial = Vi x Mf

Question 5

dilutions formula 2

Answer 5

n final = Vf x Mf

Question 6

Dilutions formula 3

Answer 6

Vi x Mi = Vf x Mf

Question 7

solid electrical conductor used to make contact with a solution or other nonmetallic component of an electrical circuit

Answer 7

electrode

Question 8

solute that produces ions in solution which enables its solution to conduct electricity

Answer 8

electrolyte

Question 9

ionic substance that dissociates completely when it dissolved in water

Answer 9

strong electrolyte

Question 10

molecular substance that does not dissolve into ions when it dissolves in water

Answer 10

nonelectrolyte

Question 11

substance that only partly dissociates into ions when it dissolves in water

Answer 11

weak electolyte

Question 12

different types of exchange reactions

Answer 12

1. precipitation reactions
2. acid-base reactions (neutralization reactions)
3. oxidation-reduction (redox) reactions

Question 13

acids

Answer 13

compounds that produce H30+ ions when they dissolve inw ater

Question 14

an acid that only partly dissociates in aqueous soltuions

Answer 14

weak acids

Question 15

an acid that completely dissociates in aqueous solutions

Answer 15

strong acids

Question 16

an acid capable of donating one H+ ion

Answer 16

monorotic acid

Question 17

an acid capable of donating up to two H+ ions

Answer 17

Diprotic acids

Question 18

An acid capable of donating up to three H+ ions

Answer 18

triprotic acids

Question 19

completely dissociates ino ions in aqueous solutions

Answer 19

strong bases

Question 20

bases that only partially dissociates in aqueous solutions

Answer 20

weak bases

Question 21

substnaces that can behave as either a proton acceptor or proton donor

Answer 21

amphoteric

Question 22

reaction in which an acid reacts with a base and produces a solution of a salt in water

Answer 22

Neutralization reaction

Question 23

there must be one H+ ion for every OH- ion

Answer 23

neutralization reaction

Question 24

balanced equation that shows all species, including spectator ions, present in a reaction, either as molecular materials or seperate ions

Answer 24

total ionic equation

Question 25

an ion that is unchanged in a chemical reaction

Answer 25

spectator ion

Question 26

a balanced equation that describes the actual reaction taking place in solution. It is obtained by eliminating the spectator ions from the total ionic equation

Answer 26

net ionic equation