Chapter 10 and 11

Question 1

is the SI base unit used to measure the amount of a substance.

Answer 1

Mole

Question 2

1 mole is the number of atoms in 12 g of pure carbon-12 or 6.02 × 1023 atoms.

Answer 2

Avogadros number

Question 3

is the mass in grams of one mole of any pure substance.

Answer 3

Molar mass

Question 4

Convert moles to atoms with

Answer 4

Avagadros number

Question 5

can be found by dividing the mass of the element by the mass of the compound and multiplying by 100.`

Answer 5

Percent by mass

Question 6

The percent by mass of each element in a compound

Answer 6

Percent composition

Question 7

is the smallest whole-number mole ratio of the elements.

Answer 7

Empirical formula

Question 8

specifies the actual number of atoms of each element in one molecule or formula unit of the substance.

Answer 8

Molecular Formula

Question 9

is the study of quantitative relationships between the amounts of reactants used and the amounts of products formed by a chemical reaction.

Answer 9

Stoichiometry

Question 10

Stoichiometry is based on

Answer 10

The law of conservation of matter

Question 11

is a ratio between the numbers of moles of any two substances in a balanced equation.

Answer 11

Mole ratio

Question 12

limits the extent of the reaction and, thereby, determines the amount of product formed.

Answer 12

Limiting reactant

Question 13

are all the leftover unused reactants.

Answer 13

Excess Reactant

Question 14

is the maximum amount of product that can be produced from a given amount of reactant.

Answer 14

Theoretical yield

Question 15

is the amount of product actually produced when the chemical reaction is carried out in an experiment.

Answer 15

Actual Yield

Question 16

of a product is the ratio of the actual yield expressed as a percent.

Answer 16

Percent yield