A major component of gasoline is octane . When octane is burned in air, it chemically reacts with oxygen gas to produce carbon dioxide and water . What mass of water is produced by the reaction of of octane

Respuesta :

Answer:

162g per mol of octane

Explanation:

The combustion reaction of octane is:

2C8H18 + 25O2 ⇒ 16CO2 + 18H2O

That means the reaction produces 18mol of water per 2 mol of octane burned, so if we burn 1 mol of octane we can obtain the mass of water like this:

[tex]1molC8H18x\frac{18molH2O}{2molC8H18} x\frac{18gH2O}{1molH2O} = 162g [/tex] of water per mol of C8H18 burned