C3H8+5O2->3CO2+4H2O. Find mass of c3h8,o2,h2o if mass of co2 is 2.2gms

Answer 1

moleCO2=2.2/44=.05

so you should have
1/3 * .05 mole of propane
5/3 * .05 mole of O2
4/3 * .05 mole of water.

I assume you can convert those to grams.