Molar Mass to Moles

How many moles are in 22g of argon?

• 0.55mol

• 1.8mol

• 8.8x10²mol

Which conversion factor should be used to solve the following, "How many moles in 28 grams of CO₂?"

• mol = 22.4 L 

• mol = 44.01 g

• mol = 6.02x10²³ atoms

• more than one

How many moles of sulfur is 64 grams of sulfur?

• .5 moles

• 1 mole

• 1.5 mole

• 2 moles

How many moles are in 2.3 grams of phosphorus?

• 0.07 moles

• 71.3 moles

• 13.5 moles

• 20 moles

Tags

NGSS.HS-PS1-7

How many grams are in 4.5 moles of sodium fluoride, NaF?

• 0.1 g

• 9.3 g

• 100 g

• 189 g

How many moles are 98.3 grams of aluminum hydroxide, Al(OH)₃?

• 26 moles

• 0.8 moles

• 7,673.4 moles

• 150 moles

Tags

NGSS.HS-PS1-7

How many moles are present in a 32.5 g sample of aluminum chloride (AlCl₃)?

• 720 moles

• 1.2 moles

• 0.2 moles

• 0.5 moles

Tags

NGSS.HS-PS1-7

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

Tags

NGSS.HS-PS1-7

How many moles are in 50g of water (H2O)?

• A) 2.78 moles

• B) 1.39 moles

• C) 0.55 moles

• D) 0.25 moles

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

• A) 12.01 g/mol

• B) 44.01 g/mol

• C) 28.01 g/mol

• D) 16.00 g/mol

Tags

NGSS.HS-PS1-1