What amount of carbon dioxide can be obtained by decomposition of 115 g

What amount of carbon dioxide can be obtained by decomposition of 115 g of calcium carbonate? How much will this amount of CO2 substance take under normal conditions?

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 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 = 115/100 = 1.15 mol;

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

To find its volume, you need to multiply the amount of substance by the volume of 1 mole of gas (which is 22.4 liters).

V CO2 = 1.15 x 22.4 = 25.76 liters;