Converting Grams to Moles

How many moles are in 16.94g of water?

• 16.94 mol H₂O

• 0.9401 mol H₂O

• 305.3 mol H₂O

• 1.063 mol H₂O

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

• A

• B

• C

• D

How many steps are in a gram to molecule conversion?

• 1

• 2

• 3

• 4

How many moles are in 64 grams of CH₄

• 1024 moles

• 4.0 moles

• 1433.6 moles

• 2.86 moles

When determining the limiting reactant, we must convert the units into moles from grams and back to grams.

• True

• False

Tags

NGSS.HS-PS1-7

If you convert from grams of one compound to moles of another, what do you need to be able to solve this problem (choose all that apply)?

• molar mass of compound A

• molar mass of compound B

• mole ratios

• number of particles

• Liters of compound B

What is the first step in converting grams to moles?

• Determine the molar mass of the substance

• Divide the mass by Avogadro's number

• Multiply the mass by the molar mass

• Add the atomic numbers of the elements

How many moles are in 88 grams of carbon dioxide (CO2)?

• 2 moles

• 1 mole

• 4 moles

• 0.5 moles

Which of the following is necessary to convert grams to moles?

• Density of the substance

• Molar mass of the substance

• Volume of the substance

• Temperature of the substance

If you have 180 grams of glucose (C6H12O6), how many moles do you have?

• 1 mole

• 2 moles

• 0.5 moles

• 3 moles