How much carbon dioxide is generated by burning 5 kg of ethane.

First, we write down the equation of reactions, then we equalize.
2C2H6 + 7O2 = 4CO2 + 6H2O.
Next, we find the amount of ethane substance. For this we use the following formula.
n = m / M.
M (C2H6) = 12 × 2 + 1 × 6 = 24 + 6 = 30 g / mol.
m = 5 kg = 5000 g.
n = 5000 g / 30 g / mol = 166.7 mol.
Further, according to the reaction equation, we find the amount of carbon dioxide.
166.7 mol С2Н6 – х mol СО2.
2 mol С2Н6 – 4 mol СО2.
X = 166.7 × 4 ÷ 2 = 333.4 mol.
Next, we find the volume of carbon dioxide.
n = V / Vm.
V = 333.4 × 22.4 = 7468.16 liters.
Answer: V = 7468.16 liters.