Unit 7 Test Prep

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

• Atomic mass
• Atomic number
• Oxidation number
• Valence electrons

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 mass of one mole of aluminum chloride (remember to determine the correct formula first)?

• 62.435g
• 116.399g
• 133.341g
• 97.888g

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

Molar mass is in units of ________.

• grams
• grams/mole
• mole
• moles/gram

What is the molar mass of fluorine gas?
(beware!)

• 18.998 g/mol
• 38 g/mol
• 9 g/mol
• 18 g/mol