C6H5-CH3 + Cl2 -> C6H5-CH2Cl + HCl
C6H5-CH3 + 2Cl2 -> C6H5-CHCl2 + 2HCl
C6H5-CH3 + 3Cl2 -> C6H5-CCl3 + 3HCl
C5H5-CH3 -> C6H5-CH3
Cm=n/Vs=>n=Cm*Vs=3*6=18 moli HCl
x+2y+3z=18 -> x+2x/3+3x/3=18 -> 8x/3=18 -> x=6,75 moli
x/y=3/1 -> y=x/3 -> y=2,25 moli
x/z=3/1 -> z=x/3 -> z=2,25 moli
x/w=3/0,5 => w=0,5x/3 -> w=0,5*6,75/3=>w=1,125 moli
MC6H5-CH3=92g/mol
n total reactionat = 6,75+2,25+2,25+1,125=12,375 moli
m C6H5-CH3=12,375*92=1138,5g toluen
ro=m/V=>V=m/ro=1138,5g/0,9g/cm3=1265cm3 toluen (am simplificat g cu g)