Carbon dioxide is produced by the decomposition of calcium carbonate. The yield of the reaction product is 70%.

Carbon dioxide is produced by the decomposition of calcium carbonate. The yield of the reaction product is 70%. Calculate what mass of calcium carbonate is required to obtain carbon dioxide in a volume of 1 m3.

The thermal decomposition reaction of calcium carbonate is described by the following chemical reaction equation:

CaCO3 = CaO + CO2 ↑;

Let’s calculate the chemical amount of carbon dioxide. To do this, we divide its volume by the volume of 1 mole of the substance.

N CO2 = 1,000 / 22.4 = 44.64 mol;

The same molar amount of calcium carbonate was decomposed.

Let’s calculate its weight taking into account the reaction yield of 70%:

M CaCO3 = 40 + 12 + 16 x 3 = 100 grams / mol;

m CaCO3 = 100 x 44.64 / 0.7 = 6 377 grams = 6.38 kg;