How much acetylene can be obtained from 150 kg of calcium carbide containing 12% impurities?

Acetylene is released when calcium carbide interacts with water.

CaC2 + 2H2O = Ca (OH) 2 + C2H2 ↑;

Let’s calculate the chemical amount of calcium carbide.

For this purpose, let us sum up the molar weights of the elements that make up its molecule.

M CaC2 = 40 + 12 x 2 = 64 grams / mol;

N CaC2 = 150,000 x 0.88 / 64 = 2,062.5 mol;

Theoretically, the same molar amount of acetylene will be obtained.

Let’s calculate its volume. To do this, multiply the molar amount of the substance by the volume of 1 mole of the substance (equal to 22.4 liters).

V C2H2 = 2,062.5 x 22.4 = 46,200 liters;