Molar Mass and Element Conversions

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

• molecular mass
• mole constant
• molar mass
• atomic weight

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

How many particles are in a mole?

• 602
• 602 million
• 602 moles
• 6.02 x 10²³

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

What is the molar mass of CO₂?

• 12 g/mol

• 16 g/mol

• 32 g/mol

• 44 g/mol

How many moles are in 22g of argon?

• 0.55mol
• 1.8mol
• 8.8x10²mol

Molar mass is in units of ________.

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

Tags

NGSS.HS-PS1-7

Which of the following set ups will correctly convert 4.00x10²³atoms of cobalt to moles of cobalt? Then solve for moles of cobalt.

• setup B : 0.6644mol Co

• setup A: 2.41x10⁴⁷mol Co

• setup A : 0.664mol Co

• setup B: 2.41x10⁴⁷mol Co

How many grams of C are in 1.2 x 10²⁴ atoms of C?

• 28 grams

• 24 grams

• 6.02 grams

• 1.2 grams

Tags

NGSS.HS-PS1-7

Which of the following setups using dimensional analysis will correctly convert 27.76g of Li to atoms of Li?

• A

• B

• C

• D

Tags

NGSS.HS-PS1-7