Am nevoie de ajutor la 5.1 punctele b si c.
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pV=niuRT niu=m/M--> pV=mRT/M
m/V=ro-----> M=roxRT/p= 4,39x0,082x(273+27)/2=>54g/mol
CnH2n-2----> M= 14n-2=54----> n=4---butadiena
mC=7,2mH
m,C=12n m,H=2n-2--> 12n=7,2(2n-2)----> n=6...hexadiena