How many moles of NF3 are present in a sample that contains 8.02 moles of a Fluorine atom

Hey there!

The sample of NF₃ contains 8.02 moles fluorine atoms.

There are 3 fluorine atoms in each molecule, so there will be 1/3 of the moles of fluorine.

8.02 / 3 = 2.67

There are 2.67 moles of NF₃ in a sample that contains 8.02 moles fluorine atoms.

Hope this helps!