Formula: CnH2n+2O. Are masa molara=12n+2n+2+16=14n+18. Pornim de la 1mol, adica de la 14n+18
14n+18.........1,5n*32
CnH2n+2O + (3n/2)O2 -> nCO2 + n+1H2O
14n+18..........x=48n
48n/14n+18=2,4 => 48n=33,6n+43,2
(48-33,6)n=43,2 => 14,4n=43,2 => n=3
=>C3H8O => CH3-CH2-CH2-OH 1propanol