Calculate the mass of the zinc chloride formed, if 32 liters were released during the interaction of zinc with salic acid. hydrogen.

Zinc dissolves in hydrochloric acid, the reaction proceeds according to the following chemical equation:

Zn + 2HCl = ZnCl2 + H2;

Let’s calculate the molar amount of synthesized hydrogen.

For this purpose, we divide the volume that it occupies by the volume of 1 mole of gas (filling the space with 22.4 liters).

N H2 = 32 / 22.4 = 1.43 mol;

The same amount of zinc chloride will be synthesized.

Let’s calculate its mass.

To do this, multiply the amount of the substance by its molar weight.

M ZnCl2 = 65 + 35.5 x 2 = 136 grams / mol;

m ZnCl2 = 1.43 x 136 = 194.48 grams;