Calculate the mass of nitrogen occupying 11 liters under normal conditions.

Under normal conditions, one mole of any gas occupies a volume of 22.4 liters. This constant is called the Avogadro number.

Knowing the volume of gas at normal conditions. it is easy to calculate first the amount of the substance of this gas, and then the mass. The nitrogen molecule consists of two atoms, which means it has a molar mass of 2 * 14 = 28 g / mol.

1 mole of gas takes 22.4 liters, and

x mol of gas takes up 11 liters of volume

x = 11 / 22.4 = 0.49 mol.

Accordingly, Y = 28 g / mol * 0.49 mol = 13.72 grams

Answer: the mass of nitrogen in 11 liters at standard conditions. equal to 13.72 grams