Molar Conversions

The number 6.022 x 10²³ is called...

• A dozen

• Bohr's number

• Buckley's number

• Avogadro's number

Which has more molecules?

• 1 mole H₂O

• 1 mole CH₄

• 1 mole Cl₂

• They're are all the same.

To convert from moles to particles, you should multiply by ....

• 
• 
• 
• 

5.11 x 10²³ atoms of lithium (Li) is equal to how many moles?

• 1.18 moles

• 0.351 moles

• 1.34 moles

• 0.849 moles

0.75 mole of copper (Cu) is equal to how many atoms?

• 8.03 x 10²³ atoms

• 6.02 x 10²³ atoms

• 4.51 x 10²³ atoms

• 3.11 x 10²³ atoms

What is the mass of one mole of potassium (K)?

• 19 grams

• 39.10 grams

• 30.97 grams

• 38 grams

How many atoms would be contained in 454 grams of iron (Fe)?

• 6.02 x 10²³ atoms

• 8.14 atoms

• 4.90 x 10²⁴ atoms

• 55.85 x 10²³ atoms

What is the molar mass of AuCl₃?

• 96.00 g/mol

• 130.00 g/mol

• 232.51 g/mol

• 303.32 g/mol

What is the molar mass of (NH₄)₃PO₄

• 113.02 g/mol

• 124.13 g/mol

• 149.12 g/mol

• 137.00 g/mol

What is the mass of 2.50 mol of oxygen gas (O₂)?

• 40.0 g

• 80.0 g

• 16.0 g

• 32.0 g