Răspunsuri

2014-10-07T20:07:09+03:00
C :  \frac{40}{12} = 3,33
H :  \frac{6.66}{1} = 6,66
O :  \frac{53.33}{16} = 3,33
Impartim totul la 3,33
C:  \frac{3,33}{3,33.} = 1
H:  \frac{6.66}{3.33} = 2
O:  \frac{3,33}{3,33} = 1
Formula moleculara : CH2O
Deoarece are 2 atomi de O in molecula => Formula moleculara : C2H4O2