n=m/M=2,2/44=0,05 moli s.o X
44g CO2.........................12g C
6,6g CO2........................x=1,8g C
18g H2O.........................2g H
3,6g H2O.......................x=0,4g H
n=m/M=1,8/12=0,15 moli C
n=m/M=0,4/2=0,2 moli H2
0,05 moli s.o X.........0,15 moli C......0,2 moli H2
1 mol.......................x=3 atomi C.......y=8 atomi H2
F.M => C3H8 -> n-propan