What amount of a substance contains 33.6 liters of hydrogen under normal conditions?

Given:
V (H2) = 33.6 L
Vm = 22.4 l / mol

To find:
n (H2) -?

Decision:
The amount of a substance is a physical quantity that characterizes the number of structural units of the same type that are contained in a substance.
Vm – molar volume is the volume of one mole of a substance (according to Avogadro’s law, under normal conditions, the value is constant – 22.4 l / mol).
1) Calculate the amount of substance H2:
n (H2) = V (H2) / Vm = 33.6 / 22.4 = 1.5 mol.

Answer: The amount of substance H2 is 1.5 mol.