160 x
CuO+H2=Cu+H2O
80 64
X=(160×64)/80=128г
m(практ)=128×0.42=53.76г
CH4->CH3Cl->C2H6->C2H5Cl
CH4+Cl2=CH3Cl+HCl
2 CH3Cl+2 Na=C2H6+2 NaCl
C2H6+Cl2=C2H5Cl+HCl
D=M(CCl4)/M(возд)=(12+4x35.5)/29=5.31