Question

An unknown compound contains only carbon, hydrogen, and oxygen (CxHyOz). Combustion of 6.00 g of this compound produced 8.80 g of carbon dioxide and 3.60 g of water

Answer 1

My guess that it’s asking for the empirical formula?

Anyway you’d start by converting 8.80g CO2 to moles of carbon since co2 is the only carbon source

I actually don’t remember where to go from there hm

Answer 2

Oh right, since H2O is the only product with hydrogen convert 3.60 g of H2O to moles of water

Then subtract total moles - moles of hydrogen - moles of carbon to find moles of oxygen and from there the formula should just be the whole # ratio of the elements

Answer 3

@kittybasil whenever you get a chance could you double check this? :S

Answer 4

It looks right to me, but I might come back to check later ...