How much carbon dioxide is generated when 100 g of ethanol is burned?

The reaction equation for the combustion of ethanol can be written as follows:

С2Н5ОН + 3 О2 = 2 СО2 + 3 Н2О

Let’s find the amount of alcohol substance. Molar mass of ethanol = 46 g / mol.

n = 100/46 = 2.17 mol

Based on the reaction equation, it can be seen that the ratio of the amount of ethanol to the amount of carbon dioxide is 1/2. The amount of substance will be correlated in the same proportion.

It turns out that the amount of carbon dioxide substance = 2.17 * 2 = 4.34 mol

Next, using the molar volume of the gas, we calculate the volume of this gas.

V = 4.34 * 22.4 = 97.2 l

Answer: 97.2 liters