If you burn 16.5 ml of ethyl alcohol, C8 H18, that has a density of 0.789g/ml what mass of co2 is produced?
I have no idea where to start.
Ethyl alcohol has a formula of C2H5OH.
C8H18 is octane.
In any case, you would work out the number of moles of alcohol in 16.5 mL. (note: 16.5 mL*0.789=13.02g)
Each mole of alcohol gives out 2 moles of CO2. (Write out the combustion equation).
So by proportion, you will get the mass of CO2 produced.