Zinc was dissolved in a solution of sulfuric acid with a volume of 2 liters with a mass fraction of h2so4 90% and a density of 1.8 g / cm3.

Zinc was dissolved in a solution of sulfuric acid with a volume of 2 liters with a mass fraction of h2so4 90% and a density of 1.8 g / cm3. how much gas was formed and how much does it take up?

1) find the mass of the H2SO4 solution: m (solution) = 2 * 1.8 * 1000 = 3600 g;
2) find the mass of H2SO4: m (H2SO4) = (3600/100) * 90 = 3240 g;
3) find the number of mol H2SO4 (M = 98 g / mol): n (H2SO4) = 3240/98 = 33 mol;
4) all the acid has reacted, therefore n (H2SO4) = n (Zn) = n (H2);
5) we find the volume of the formed hydrogen (n.u. Vm = 22.4 l / mol): V (H2) = 33 * 22.4 = 739.2 l;
Answer: hydrogen was released in a volume of 739.2 liters.