Mole-Mass Conversions

How many moles in 28. o grams of Oxygen?

What is the mass of 5.0 moles of Iron?

Find the number of moles of argon in 452 g of argon.

Find the grams in 16.5 mol of Hydrogen.

1.) 28.0 grams of oxygen

28 grams (1 mole/16 grams per mole) = 1.75 moles oxygen

2.) 5.0 moles of Iron

5 moles (55.845 grams/1 mole) = 279.225 grams Iron

3.) 452 grams Argon

452 grams (1 mole/39.948 grams) = 11.315 moles Argon

4.) 16.5 moles Hydrogen

16.5 moles (1.01 grams/1 mole) = 16.665 grams Hydrogen