**[Watch the Lesson on Molar Mass here.]**

**[Download the accompanying PDF worksheet.]**

**Solve the following problems:**

- What is the mass in grams of 51.2 moles of trichlorine nonafluoride?
- What is the mass in grams of 3.00 moles of magnesium chlorite?
- How many moles are in 189 grams of calcium hypoarsenite?
- How many moles are in 0.0395 grams of cobalt(VI) permanganate?