1. Let’s compose the equation of the reaction proceeding under the action of zinc on sulfuric acid:
Zn + H2SO4 = ZnSO4 + H2 ↑;
2. find the chemical amount of zinc:
n (Zn) = m (Zn): (Zn) = 32.5: 65 = 0.5 mol;
3. Determine the theoretical amount of evolved hydrogen:
ntheor (H2) = n (Zn) = 0.5 mol;
4.calculate the theoretical volume of hydrogen:
Vtheor (H2) = ntheor (H2) * Vm = 0.5 * 22.4 = 11.2 liters;
5.Calculate the practical volume of hydrogen produced:
Vpract (H2) = Vtheor (H2) * ν = 11.2 * 0.95 = 10.64 liters.
Answer: 10.64 liters.
One of the components of a person's success in our time is receiving modern high-quality education, mastering the knowledge, skills and abilities necessary for life in society. A person today needs to study almost all his life, mastering everything new and new, acquiring the necessary professional qualities.