Molar Mass

The molar mass of an element is equal to its...

• Atomic mass

• Atomic number

• Oxidation number

• Valence electrons

The mass of one mole of substance is called...

• molecular mass

• mole constant

• molar mass

• atomic weight

What is the molar mass of sodium?

• 11

• 23

• 45.98

• 3

What is the mass of one mole of aluminum?

• 27 g

• 13 g

• 54 g

• 14 g

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

• 116.886 g/mol

• 35.453 g/mol

• 22.990 g/mol

• 58.443 g/mol

What is the molar mass of NaOH?

• 40 g/mol

• 38.989 g/mol

• 23.998 g/mol

• 57.004 g/mol

What is the molar mass of CO₂?

• 12

• 16

• 32

• 44

How many particles are in a mole?

• 602

• 602 million

• 602 moles

• 6.02 x 10²³

Which of the following is needed to determine the molar mass of a molecule?

• Types of elements in the molecule

• Quantity of elements in the molecule

• Mass of the elements in the molecule

• All are correct and needed.

Which would have more atoms?

• 1 mole of Li

• 1 mole of Au

• 1 mole of Si

• None, all are equal

Tags

NGSS.MS-PS1-1