Molar Volume of an Ideal Gas

Learning Objectives:

Students confirm the Ideal Gas Law: under conditions of constant pressure and temperature, one mole of any gas will always occupy the same volume.


Students produce hydrogen gas in sealed Erlenmeyer flasks by mixing zinc and hydrochloric acid. Gas syringes measure the volume of hydrogen gas produced. Students determine the number of moles of hydrogen produced based on the mass of hydrochloric acid, and then determine the molar volume of the hydrogen gas. They test if their measured molar volume of hydrogen gas is comparable to the value predicted by the Ideal Gas Law.