Determine the mass of zinc required to obtain 10 liters. hydrogen va = 22.4 in the reaction with sulfuric

Determine the mass of zinc required to obtain 10 liters. hydrogen va = 22.4 in the reaction with sulfuric acid if the reaction output is 78%.

When dissolved in sulfuric acid, metallic zinc is converted to zinc sulfate.

Zn + H2SO4 = ZnSO4 + H2;

Let’s find the chemical amount of hydrogen. To do this, we divide the volume of gas by the volume of 1 mole of gas (which is 22.4 liters).

N H2 = 10 / 22.4 = 0.446 mol;

Taking into account the reaction yield of 78%, to obtain such an amount of hydrogen, it is necessary to dissolve 0.446 / 0.78 = 0.572 mol of zinc.

Let’s calculate the weight of zinc. For this purpose, we multiply the amount of substance by the weight of 1 mole of metal.

m Zn = 0.572 x 65 = 37.18 grams;