Determine the volume of carbon dioxide under normal conditions that can be obtained by firing 1 ton of limestone.

The limestone roasting reaction is described by the following equation:
CaCO3 = CaO + CO2 ↑;
When decomposing 1 mol of limestone, 1 mol of calcium oxide and 1 mol of carbon monoxide is obtained.
Let’s calculate the chemical amount of calcium carbonate. For this purpose, we divide its weight by its molar mass.
M CaCO3 = 40 + 12 + 16 x 3 = 100 grams / mol; N CaCO3 = 1,000,000 / 100 = 10,000 mol;
Let us find the volume of 10,000 moles of carbon dioxide.
To do this, multiply the amount of substance by the volume of 1 mole of gas (filling 22.4 liters).
V CO2 = 10,000 x 22.4 = 224,000 liters = 224 m3.