1. Avogadro's Number
* Avogadro's number tells us the number of particles (atoms, molecules, etc.) in one mole of a substance. It's approximately 6.022 x 10^23.
2. Oxygen Molecules
* Oxygen gas exists as diatomic molecules (O2). This means each oxygen molecule contains two oxygen atoms.
3. Calculation
* Step 1: Calculate the number of oxygen molecules in 5 moles:
* 5 moles O2 * (6.022 x 10^23 molecules/mole) = 3.011 x 10^24 molecules of O2
* Step 2: Calculate the number of oxygen atoms:
* 3.011 x 10^24 molecules O2 * (2 atoms/molecule) = 6.022 x 10^24 atoms of oxygen
Answer: There are approximately 6.022 x 10^24 oxygen atoms in 5 moles of oxygen.
