Determine the amount of the substance and the mass of zinc and hydrochloric acid necessary for the production of hydrogen

Determine the amount of the substance and the mass of zinc and hydrochloric acid necessary for the production of hydrogen with the amount of the substance 0.5 mol: Zn + 2HCl = ZnCl2 + H2

In order to dissolve zinc, double the amount of hydrochloric acid is required.

Zn + 2HCl → ZnCl2 + H2;

This is due to the fact that zinc is a divalent metal, and the chlorine ion is monovalent.

To synthesize 0.5 mol of hydrogen, it is necessary to dissolve 0.5 mol of zinc in 1 mol of hydrochloric acid.

Let’s calculate their weights.

M Zn = 65 grams / mol;

m Zn = 65 x 0.5 = 32.5 grams;

M HCl = 1 + 35.5 = 36.5 grams / mol;

m HCl = 1 x 36.5 = 36.5 grams;