fenol=C6H5OH
benzen=C6H6
M C6H5OH=6AC+6AH+AO=94g/mol
M C6H6=6AC+6AH=78g/mol
n C6H6/n C6H5OH=1/2=>2nC6H6=nC6H5OH
Notez cu m masa amestecului.
m=mC6H6+mC6H5OH
mC6H6=78*n C6H6
mC6H5OH=94*nC6H5OH=94*2*nC6H6=188*nC6H6
188*nC6H6+78*nC6H6=m
266nC6H6=m
% C6H6=m C6H6*100/m=78nC6H6*100/266nC6H6=29,3233%
%C6H5OH=100-29,3233=70,6767%