Răspuns :
CO2
MCO2=12+2 .16=44-------->1mol=44g
44g CO2------------12 g C
100 g CO2------------Xg C
X=100.12:44=27,27 la suta C
CO2 M = 44g/mol ; mO = 2·16 = 32g ⇒ %O = 32/44 ·100 = 72,72%
CO2
MCO2=12+2 .16=44-------->1mol=44g
44g CO2------------12 g C
100 g CO2------------Xg C
X=100.12:44=27,27 la suta C