Understanding the Relationship

* Avogadro's Number: One mole of any substance contains 6.022 x 10^23 particles (atoms, molecules, etc.). This is known as Avogadro's number.

Calculation

1. Set up the ratio:

(3.6 x 10^23 molecules O2) / (6.022 x 10^23 molecules O2/mole)

2. Cancel out the units: The "molecules O2" units cancel, leaving you with "moles".

3. Calculate: Divide 3.6 x 10^23 by 6.022 x 10^23.

Answer:

3.6 x 10^23 molecules of oxygen gas (O2) is equal to 0.60 moles of oxygen gas.