4.4 - Molar Mass

What is the definition of molar mass?

• number of grams per one mole of a substance

• whole number ratio that is a multiple of a chemical formula

• simplest, whole number ratio of a chemical formula

• 6.02 x 10^23 particles per one mole of a substance

Molar mass is in units of ________.

• grams

• grams/mole

• mole

• moles/gram

Tags

NGSS.HS-PS1-7

What is Avogadro's Number? 

• 6.02 x 10²³

• - 6.02 10²³

• 6.02 x 10²²

• 6,020,000,000,000

Tags

NGSS.HS-PS1-7

What is the molar mass of B₂(CO₃)₃?

• 81.632 g/mol

• 94.842 g/mol

• 38.822 g/mol

• 201.648 g/mol

What is the molar mass of NaOH?

• 39.997 g/mol

• 38.989 g/mol

• 23.998 g/mol

• 57.004 g/mol

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 sodium (Na)?

• 11 g/mol

• 22.990 g/mol

• 45.98 g/mol

• 3 g/mol

Find the molar mass of:

Pb(NO₃)₂

• 241 g/mol

• 207 g/mol

• 301 g/mol

• 331 g/mol

Find the molar mass of:

(NH₄)₂SO₄

• 132 g/mol

• 123 g/mol

• 119 g/mol

• 143 g/mol

Find the molar mass of:

CCl₂F₂

• 72 g/mol

• 121 g/mol

• 40 g/mol

• 221 g/mol