Gen Chemestry
posted by Roth .
How many pounds of carbon dioxide are produced from burning one gallon of gasoline? assume gasoline is 100%, and the density of octane is .78g/ml.

Write the equation and balance it.
Convert 1 gallon octane to mL, then use the density to convert to grams.
Convert grams octane to mols octane (mols octane = grams/molar mass).
Using the coefficients in the balanced equation, convert mols octane to mols CO2.
Convert mols CO2 to grams CO2 by using grams CO2 = mols CO2 x molar mass CO2.
Convert g CO2 to pounds CO2.
Check my thinking. Post your work if you get stuck. 
thanks DrBob222 I appreciated your help

What is Kc if [CO2]=[H2O]=0.01M and [C2H4]=[O2]=0.0001M