Calculate the mass of calcium oxide and the volume of carbon monoxide (4), which can be obtained with

Calculate the mass of calcium oxide and the volume of carbon monoxide (4), which can be obtained with the complete decomposition of 4 mol of calcium carbonate.

Given:
n (CaCO3) = 4 mol
To find:
m (CaO) -?
V (CO2) -?
Decision:
1) CaCO3 => CaO + CO2 ↑;
2) n (CaO) = n (CaCO3) = 4 mol;
3) m (CaO) = n * M = 4 * 56 = 224 g;
4) n (CO2) = n (CaCO3) = 4 mol;
5) V (CO2) = n * Vm = 4 * 22.4 = 89.6 liters.
Answer: The mass of CaO is 224 g; CO2 volume – 89.6 liters.