# Worksheet: Formula Masses

In this worksheet, we will practice calculating formula masses by summing the relative atomic masses of the constituent elements.

**Q3: **

What is the molar mass of methane ()? Give your answer to 1 decimal place.

**Q4: **

What is the molar mass of diborane ()?

**Q5: **

What is the molar mass of hydrazine ()? Approximate your answer to 3 significant figures.

**Q6: **

What is the molar mass of to 2 decimal places?