The amount of acetylene that can be obtained by the action of excess water on 320 g of technical calcium

The amount of acetylene that can be obtained by the action of excess water on 320 g of technical calcium carbide containing 10% of impurities

Acetylene is released when calcium carbide interacts with water.

CaC2 + 2H2O = Ca (OH) 2 + C2H2 ↑;

Let’s determine the chemical amount of calcium carbide.

To do this, we add up the molar weights of its constituent elements.

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

N CaC2 = 320 x 0.9 / 64 = 4.5 mol;

Theoretically, the same amount of acetylene will be synthesized.

Let’s find its volume. For this purpose, we multiply the amount of the substance by the volume of 1 mole of the substance (equal to 22.4 liters).

V C2H2 = 4.5 x 22.4 = 100.8 liters;