1.
MCH3Cl=50,5g/mol
MCH2Cl2=85g/mol
50,5x+85y............................35,5x+71y
100g........................................58g
2929x+4930y=3550x+7100y => 621x=2170y => x/y=2170/621=7/2
m CH3Cl=7*50,5=
m CH2Cl2=2*85=
2. C6H6 + 3Cl2 ---lumina---> C6H6Cl6 [gamexan sau lindan]
78g C6H6............................291g C6H6Cl6
xg C6H6..............................20g C6H6Cl6
x=78*20/291=5,36g C6H6
ro=m/V=>V=m/ro=5,36/0,79=
