Calculate the number of moles of sodium required for the reaction with water so that as many

Calculate the number of moles of sodium required for the reaction with water so that as many volumes of hydrogen are released as it is released in the reaction of interaction of 12 g of magnesium with sulfuric acid.

Magnesium dissolves in sulfuric acid solution. The reaction is described by the following chemical equation:

Mg + H2SO4 = MgSO4 + H2 ↑;

Let’s calculate the molar amount of magnesium substance.

For this purpose, we divide its mass by the weight of 1 mole of metallic magnesium.

M Mg = 24 grams / mol;

N Mg = 12/24 = 0.5 mol;

An equivalent amount of hydrogen gas will be obtained.

The reaction of sodium with water is described by the following chemical equation:

Na + H2O = NaOH + ½ H2;

Thus, to obtain 0.5 mol of hydrogen, it is necessary to take 0.5 x 2 = 1 mol of sodium.