Đặt :
nC2H5OH = a (mol)
nCH3OH = b (mol)
=> mhh = 46a + 32b = 5.5 (g) (1)
nH2 = 0.075 (mol)
C2H5OH + K => C2H5OK + 1/2 H2
CH3OH + K => CH3OK + 1/2H2
=> 0.5a + 0.5b = 0.075 (2)
(1) , (2) :
a = 0.05
b = 0.1
%m C2H5OH = 0.05*46/5.5 * 100% = 41.82%
%m CH3OH = 58.18%