What is the molar volume?

Flexi Says:
Avogadro’s hypothesis states that equal volumes of all gases at the same temperature and pressure contain the same number of particles. The volume of 1 mole of any gas is called its molar volume and is equal to 22.4 L at standard temperature and pressure. To find the volume of a gas in liters, multiple the number of moles of the gas times 22.4.