How much hydrogen will be released as a result of the reaction of 1.2 g of magnesium

How much hydrogen will be released as a result of the reaction of 1.2 g of magnesium with an excess of hydrochloric acid?

The reaction of magnesium with hydrochloric acid is described by the following chemical reaction equation:

Mg + 2HCl = MgCl2 + H2;

When one mole of magnesium reacts, one mole of hydrogen is formed.

N Mg = 1.2 / 24 = 0.05 mol;

N H2 = N Mg;

Under normal conditions, one mole of ideal gas takes up a volume of 22.4 liters.

N H2 = 0.05 x 22.4 = 1.12 liters;