Relationship between moles of O2 and Ch2 Units in a combustion reaction

[deezer]

Homework Statement

I want to find a relationship between the number of moles of O2 used and the number of CH2 units in an alkane in a complete combustion reaction.

Homework Equations

The Attempt at a Solution

Right now I have come up with a math equation, given X units of CH2, to find the number of O2 moles. I used patterns to find the equation, is there any other relationship? The more units of CH2 you have, the more O2 you need to combust it right?

 

[epenguin]

This is very very elementary but just give a chemical equation if you want help although you seem to say you have solved it.

 

[deezer]

It was a generic question, I'm only concerned that I am not thinking outside of the box by considering only the mathematical relationship.

 

[epenguin]

Until you write down what your actual thoughts are, preferably in some sort of formula or calculation, we do not know what you mean.