Calculate the mass of carbon monoxide (lV) obtained by thermal decomposition of 4 tons of calcium carbonate.

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

CaCO3 = CaO + CO2 ↑;

Let’s calculate the chemical amount of calcium carbonate. To do this, we divide its weight by the mass of 1 mole of the substance.

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

N CaCO3 = 4,000,000 / 100 = 40,000 mol;

The same molar amount of carbon dioxide could theoretically be synthesized.

Find the weight of carbon monoxide. To do this, multiply the amount of the substance by its molar weight.

M CO2 = 12 + 16 x 2 = 44 grams / mol;

m CO2 = 40,000 x 44 = 1,760,000 grams = 1.76 tons;