The combustion of anoxic organic matter produced 4.48 liters of carbon dioxide, 3.6 g of water and 3.65 g

The combustion of anoxic organic matter produced 4.48 liters of carbon dioxide, 3.6 g of water and 3.65 g of hydrogen chloride. Find the volume and mass of the burnt substance

To solve this problem, we perform the following actions:
First, you need to determine the amount of carbon in the compound, for this we calculate the number of moles in carbon monoxide:
n (CO2) = 4.48 / 22.4 = 0.2 mol
From this it follows that the amount of CO2 substance is 0.2 mol, which means that C is also 0.2 mol, because 1 mol of CO2 contains 1 mol of C.
Next, we calculate the amount of hydrogen in the compound
n (H2O) = m / M = 3.6 / 18 = 0.2 mol
This means that hydrogen atoms are 0.4 mol (since it is 2 times more)
Therefore, n (H2) = 0.4 mol
We calculate the amount of chlorine in the substance
n (HCl) = 3.65 / 36.5 = 0.1 mol,
this means that the amount of chlorine substance is 0.1 mol
hydrogen chloride also contains hydrogen n (H) = 0.1 mol
Therefore, it must be folded up, it turns out the following:
It is necessary to establish the ratio of atoms in the formula
C: H: Cl = 0.2: (0.4 + 0.1): 0.1 = 2: 5: 1
it follows that the formula looks like this:
C2H5Cl chloroethane
then we calculate the mass of the burnt substance using the following formula:
m = Ar (C) × n + Ar (H) × n + Ar (Cl) × n = 12 × 0.2 + 1 × 0.5 + 35.5 × 0.1 = 6.45 g
We calculate the amount of substance of the resulting compound
n (C2H5Cl) = m / M = 6.45 / 64.5 = 0.1 mol
V (C2H5Cl) = Vm × n = 22.4 × 0.1 = 2.24 l
Answer: the volume of the burnt substance is 2.24 liters.