a) Alken o 4 at węgla: C₄H₈ M= 4*12 + 6*1= 48 + 6= 54u 100%-54u x----48u x= 100%×48u ÷ 54u=88,8% (C) %H= 100%-88,8%=11,2% b)alkan: C₂H₆ m=2*12+6*1=24+6=30u 100%-30u x----24u x= 100%*24u/30u = 80% (C) %H=100%-80%=20%
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a) Alken o 4 at węgla: C₄H₈
M= 4*12 + 6*1= 48 + 6= 54u
100%-54u
x----48u
x= 100%×48u ÷ 54u=88,8% (C)
%H= 100%-88,8%=11,2%
b)alkan: C₂H₆
m=2*12+6*1=24+6=30u
100%-30u
x----24u
x= 100%*24u/30u = 80% (C)
%H=100%-80%=20%