CT : CnH2n
nX = 8.96/22.4 = 0.4 (mol)
m tăng = mX = 22.4 (g)
MX = 22.40.4 56 (g/mol)
=> 14n = 56
=> n = 4
CT : C4H8
TN2 :
nC4H8 = 11.2/56 = 0.2 (mol)
nBr2 = 0.25*2 = 0.3 (mol)
C4H8 + Br2 => C4H8Br2
dd Y : Br2 dư , C4H8Br2
nC4H8(ct) = 0.3 - 0.2 = 0.1 (mol)
VX = 2.24 (l)
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