When you inhale 5.0 mol of oxygen, 3.0 × 10²⁴ molecules of oxygen enter your lungs.
We want to know how many molecules of oxygen are contained in 5.0 mol of oxygen.
The number of molecules in 1 mole is a constant known as Avogadro's number.
Avogadro's number is the number of atoms or molecules in one mole of a substance, equal to 6.023 × 10²³.
5.0 mol × (6.023 × 10²³ molecules/1 mol) = 3.0 × 10²⁴ molecules
When you inhale 5.0 mol of oxygen, 3.0 × 10²⁴ molecules of oxygen enter your lungs.
Learn more about Avogadro's number here: https://brainly.com/question/7287712
