Find the volume and number of molecules 132 g of carbon monoxide (4)

M (CO2) = 12 + 2 * 16 = 44 g / mol (molar mass is found from the periodic table)

n (CO2) = m / M = 132/44 = 3 mol (m – given under conditions, we find the number of moles of the substance)

V (CO2) = n * Vm = 3 * 22.4 = 67.2 l. (Vm is a constant value, equal to 22.4 L / mol)

N (CO2) = n * Na = 3 * 6.022 * 10 ^ 23 = 18.066 * 10 ^ 23 (Na is Avogadro’s constant, the number of atoms in one mole of a substance.