To solve, we write down the equation of the process:
ZnS + H2SO4 (dil.) = H2S + ZnSO4 – ion exchange, hydrogen sulfide is released;
Let’s make the calculations:
M (ZnS) = 97.3 g / mol;
M (H2S) = 34 g / mol.
Determine the amount of zinc sulfide:
Y (ZnS) = m / M = 38.8 / 97.3 = 0.398 mol;
Y (H2S) = 0.398 mol since the amount of these substances is 1 mol.
Find the volume of the product:
V (H2S) = 0.398 * 22.4 = 8.92 L
Answer: the volume of hydrogen sulfide is 8.92 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.