What should be the mass of sulfuric acid in order to obtain 33.6 l / hydrogen when the solution acts on zinc?

Zinc is converted to zinc sulfate. The reaction is described by the following chemical reaction equation:

Zn + H2SO4 = ZnSO4 + H2;

Let’s calculate the molar amount of hydrogen. To do this, we divide the volume of gas by the volume of 1 mole of gas (22.4 liters).

N H2 = 33.6 / 22.4 = 1.5 mol;

To obtain such an amount of hydrogen, it is necessary to dissolve 1.5 mol of zinc and 1.5 mol of sulfuric acid.

Let’s determine its weight.

M H2SO4 = 98 grams / mol;

m H2SO4 = 1.5 x 98 = 147 grams;