Question

2CO + O2 -> 2CO2

How many liters of carbon dioxide are produced if 75 liters of carbon monoxide are burned in oxygen? How many liters of oxygen are necessary?

I don't know how to do the fence-post for this.

Answer 1

balance this first

then use the ratio determined by the coefficients to find what you want

Answer 2

in this manner:

aA + bB <-> cC

moles of A/a=moles of C/c

Answer 3

It's already balanced, I just don't know how to set up my fence-post.

Answer 4

fence post?

Answer 5

With the lines, and the top and bottom section. I don't know if that's the official term, but that's what our teacher calls it.