What volume of acetylene can be obtained from calcium carbide, weighing 100 kg

What volume of acetylene can be obtained from calcium carbide, weighing 100 kg, in which the mass fraction of impurities is 15%?

Acetylene is released when calcium carbide interacts with water.

CaC2 + 2H2O = Ca (OH) 2 + C2H2 ↑;

Let’s determine 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 = 100,000 x 0.85 / 64 = 1,328 mol;

Theoretically, the same amount of acetylene will be obtained.

Let’s find 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 = 1328 x 22.4 = 29 750 liters = 29.75 m3;