One-Step Molar Conversions

Which of the following conversion factors should be used when you are given molecules of H₂O and looking for moles of H₂O?

(mm H₂O = 18 g/mol)

• 
• 
• 
• 

Which of the following conversion factors should be used when you are given moles of H₂O and looking for grams of H₂O?

(mm H₂O = 18 g/mol)

• 
• 
• 
• 

Which of the following should you always start any molar conversion problem with?

• the given and it's units

• Avogadro's number and it's units

• the molar mass and it's units

• the atomic mass and it's units

For the problem: Find the number of grams of 3.76 mol of CO₂

What is the molar mass of CO₂? (C = 12 O = 16)

• 40 g/mol

• 32 g/mol

• 44 g/mol

• 28 g/mol

For the problem: Find the number of grams of 3.76 mol of CO₂

Do you need to use Avogadro's number?

• yes

• no

• not sure

Which of the following conversion factors should be used when you are given grams of H₂O and looking for moles of H₂O?

(mm H₂O = 18 g/mol)

• 
• 
• 
• 

For the problem: Find the number of grams of 3.76 mol of CO₂

Which of the following is the correct setup to solve this problem?

• 
• 
• 
• 

Which of the following conversion factors should be used when you are given moles of H₂O and looking for molecules of H₂O?

(mm H₂O = 18 g/mol)

• 
• 
• 
• 

For the problem: Find the number of grams of 3.76 mol of CO₂

What is the given for this problem?

• molar mass of CO₂

• 3.76 mol CO₂

• 6.02 x 10²³ molecules of CO₂

• 3.76 grams of CO₂

If you are moving from one box to another and dividing by molar mass for Fe, what are the two boxes that you are using on the road map?

• mol and atoms

• atoms and grams

• mol and grams

• not enough information provided