CH2 = C(C2-CH3) - C(CH3) = CH - CH2 - CH3
Масса аксеод алюминия равна
CH4->C2H2->C2H4O->C2H5OH->C2H5Br->C2H4->C2H5OH->C2H4O
1)2CH4=C2H2+3H2
2)C2H2+H2O=C2H4O
3)C2H4O+H2=C2H5OH
4)C2H5OH+HBr=C2H5Br+H2O
5)C2H5OH=C2H4O+H2
N=m/M
N=n*Na
n(S)=8/32=0.25моль
N(S)=0.25*6.02*10^23=1.505*10^23
n(Fe)=280/56=5моль
N(Fe)=5*6.02*10^23=3.01*10^24
n(Cu)=3200/64=50моль
N(Cu)=50*6.02*10^23=3,01*10^25