Calculate the amount of CO2 generated by the action of hydrochloric acid per 100 g of calcium carbonate.

To solve, we will compose the reaction equation:
CaCO3 + 2HCl = CaCl2 + CO2 + H2O – ion exchange reaction, carbon dioxide is released;
Let’s make calculations using the formulas:
M (HCl) = 1 + 35.5 = 36.5 g / mol;
M (CO2) = 12 + 16 * 2 = 44 g / mol;
We calculate the number of moles of hydrochloric acid, if the mass is known:
Y (HCl) = m / M = 100 / 36.5 = 2.7 mol;
Let’s make the proportion:
2.7 mol (HCl) – X mol (CO2);
-2 mol              -1 mol hence, X mol (CO2) = 2.7 * 1/2 = 1.36 mol;
Find the volume of carbon dioxide by applying Avogadro’s law:
V (CO2) = 1.36 * 22.4 = 30.46 liters.
Answer: during the reaction, carbon dioxide is released in a volume of 30.46 liters.