Question 1

What is the definition of molecular mass?

Accepted Answer

The sum of the atomic masses of each atom in the molecule

Answer

The sum of the atomic masses of each atom in the formula unit

Answer

The sum of the atomic masses of each atom in the element

Answer

The sum of the atomic masses of each atom in the compound

Question 2

What is the definition of formula mass?

Accepted Answer

The sum of the atoms in one formula unit

Answer

The sum of the atoms in one compound

Answer

The sum of the atoms in one molecule

Answer

The sum of the atoms in one element

Question 3

Which term is used to measure compounds like water and table salt?

Accepted Answer

Molecular mass and formula mass

Answer

Atomic mass

Answer

Elemental mass

Answer

Molar mass

Question 4

What is the molecular mass of water (H2O)?

Accepted Answer

18.015 g/mol

Answer

36.032 g/mol

Answer

20.018 g/mol

Answer

10.001 g/mol

Question 5

What is the formula mass of table salt (NaCl)?

Accepted Answer

58.443 g/mol

Answer

36.032 g/mol

Answer

40.079 g/mol

Answer

44.997 g/mol

Question 6

Which term refers to the sum of the atomic masses of each atom in a compound?

Accepted Answer

Molecular mass

Answer

Molar mass

Answer

Formula mass

Answer

Atomic mass

Question 7

Which term refers to the sum of the atoms in one formula unit of a compound?

Accepted Answer

Formula mass

Answer

Molecular mass

Answer

Atomic mass

Answer

Molar mass

Question 8

What is the molecular mass of carbon dioxide (CO2)?

Accepted Answer

44.01 g/mol

Answer

36.032 g/mol

Answer

20.018 g/mol

Answer

58.443 g/mol

Question 9

What is the formula mass of methane (CH4)?

Accepted Answer

16.04 g/mol

Answer

44.01 g/mol

Answer

20.018 g/mol

Answer

10.001 g/mol

Question 10

True or False: Molecular mass and formula mass refer to the same concept.

Accepted Answer

False

Answer

Not applicable

Answer

True

Answer

Cannot be determined

Question 11

What is molar mass?

Accepted Answer

The substance's mass in one mole

Answer

The number of particles in one mole

Answer

The mass of one atom

Answer

The substance's mass in one gram

Question 12

What does the molar mass of elements equal to?

Accepted Answer

Atomic mass

Answer

Formula mass

Answer

Molecular mass

Answer

Number of particles

Question 13

What does the molar mass of compounds equal to?

Accepted Answer

Molecular mass or formula mass

Answer

Atomic mass

Answer

Number of particles

Answer

Grams

Question 14

What does molar mass contain?

Accepted Answer

6.02 x 10^23 particles

Answer

6.02 x 10^22 particles

Answer

1 particle

Answer

6.02 x 10^24 particles

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