Calculate the volume of hydrogen that will be released when zinc reacts with 200 g of a 49% sulfuric acid solution.

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

Zn + H2SO4 = ZnSO4 + H2;

Let’s calculate the molar amount of sulfuric acid. To do this, we divide its weight by the mass of 1 mole of the substance.

M H2SO4 = 2 + 32 + 16 x 4 = 98 grams / mol;

N H2SO4 = 200 x 0.49 / 98 = 1 mol;

This reaction will synthesize 1 mole of hydrogen. Let’s find its volume. To do this, multiply the amount of substance by the volume of 1 mole of gas (22.4 liters).

V H2 = 1 x 22.4 = 22.4 liters;