The metal magnesium (excess) reacted with a solution in which the chemical amount of sulfuric acid

The metal magnesium (excess) reacted with a solution in which the chemical amount of sulfuric acid is 0.1 mol. Determine the amount of hydrogen evolved.

1. Let’s write down the equation of the reaction of magnesium with sulfuric acid solution:

Mg + H2SO4 = MgSO4 + H2 ↑;

2. according to the reaction equation, the amounts of reacting sulfuric acid and evolved hydrogen are identical:

n (H2) = n (H2SO4) = 0.1 mol;

3. Determine the volume of hydrogen:

V (H2) = n (H2) * Vm = 0.1 * 22.4 = 2.24 liters.

Answer: 2.24 liters.