dgaz=M/Mgaz=>M=4,05*28,9=117g/mol
n=m/M=0,234/117=0,002 moli s.o
44g CO2..................................12gC
0,44g CO2................................x=0,12g C
18g H2O...........................2gH
0,198g H2O.....................x=0,022g H
n=m/M=0,12/12=0,01 moli C ||:0,002 => 5
n=m/M=0,022/1=0,022 moli H ||:0.002 => 11 atomi H
C5H11NOx=117 => 85+16x=117 =>16x=32 => x=2
F.M => C5H11NO2