Question

In gasoline vehicles like the Ford Bronco, octane combines with oxygen gas to create an explosion. This explosion is what powers the vehicle. A product of this reaction is carbon dioxide which has been attributed to global warming. How many grams of carbon dioxide are produced for every 350 grams of octane reacted in the engine? 2C8H18 + 25 O2 -> 16 CO2 + 18 H2O

Answer 1

Answer:  1082 g of carbon dioxide are produced for every 350 grams of octane reacted in the engine

Explanation:

To calculate the moles :

$\text{Moles of solute}=\frac{\text{given mass}}{\text{Molar Mass}}$    

$\text{Moles of} C_8H_{18}=\frac{350g}{114g/mol}=3.07moles$

$2C_8H_{18}+25O_2(g)\rightarrow 16CO_2+18H_2O$

According to stoichiometry :

As 2 moles of octane give = 16 moles of $CO_2$

Thus 3.07 moles of octane will give =$\frac{16}{2}\times 3.07=24.6moles$  of $CO_2$

Mass of $CO_2=moles\times {\text {Molar mass}}=24.6moles\times 44g/mol=1082g$

Thus 1082 g of carbon dioxide are produced for every 350 grams of octane reacted in the engine