4th Quarter Exam Coverage

Question 1

SO4²-

Answer 1

sulfate ion

Question 2

SO3²-

Answer 2

Sulfite ion

Question 3

NO3-

Answer 3

Nitrate ion

Question 4

NO2-

Answer 4

Nitrite ion

Question 5

PO4³-

Answer 5

Phosphate ion

Question 6

PO3³-

Answer 6

Phosphite ion

Question 7

CO₃²⁻

Answer 7

Carbonate ion

Question 8

C2H3O2-

Answer 8

Acetate Ion

Question 9

ClO4-

Answer 9

Perchlorate ion

Question 10

ClO3-

Answer 10

Chlorate ion

Question 11

ClO2-

Answer 11

chlorite ion

Question 12

ClO-

Answer 12

hypochlorite ion

Question 13

HSO4-

Answer 13

hydrogen sulfate ion

Question 14

HCO3-

Answer 14

hydrogen carbonate ion

Question 15

H2PO4-

Answer 15

dihydrogen phosphate ion

Question 16

HPO4²-

Answer 16

hydrogen phosphate ion

Question 17

Avogadro’s number

Answer 17

6.022x10²³

Question 18

Avogadro’s number named from an Italian scientist ____?

Answer 18

Amadeo Avogadro

Question 19

Used to refer to the number of particles of a substance that is equal to Avogadro’s number.

Answer 19

Mole (mol)

Question 20

Deals with quantitative relationship between the reactants

Answer 20

Stoichiometry

Question 21

“measuring the pieces”

Answer 21

Stoichiometry

Question 22

Sum of the atomic masses

Answer 22

Formula mass or Molar mass

Question 23

Used interchangeably with molar mass although the term is not usually applicable to ionic substances since molecules are not their basic structural unit

Answer 23

Molecular weight

Question 24

Molar mass is expressed in …

Answer 24

grams per mole

Question 25

1 mole is equal to (1 mole = ___)

Answer 25

6.022x10²³

Question 26

German chemist named ___ created the term “mole”.

Answer 26

Wilhelm Ostwald

Question 27

Carbon 12 is assigned to have exactly 12 units of mass called

Answer 27

atomic mass unit (amu)

Question 28

It is the simplest positive integer ratio of atoms present in a compound.

Answer 28

Empirical formula

Question 29

This term was first used around 1896.

Answer 29

Mole