Question

Octane (C8H18) is found in gasoline. It is burned for fuel in a combustion reaction. The unbalanced combustion reaction for octane is shown below. C8H18 + O2 -> CO2 + H2O + heat. When the reaction is balanced, how many carbon dioxide molecules are produced for every octane molecule burned?

Answer 1

First, balance the equation. Next, can you find the number of moles of whatever substance you have?

Use this: http://www.ptable.com/

Answer 2

The balanced equation is :2C8H18 + 25O2 --> 16CO2 + 18H2O

Answer 3

so the answer is 8....

Answer 4

Yup! Good job!

Answer 5

;D

Answer 6

now that the equation is balanced, what is the ratio of \(CO_2\) molecules made per octane molecules burned?

(the coefficients that you used to balance the equation are all you need)

Answer 7

17

Answer 8

17.5, my sincere apologies