Дано
m(C6H6)=117 g
CL
-------------------
C6H5CL
117 Xg
C6H6+CL2-->C6H5CL+HCL
78 112.5
M(C6H6)=78 g/mol , M(C6H5CL)=112.5 g/mol
X=117*112.5/78
X=168.75 g
ответ 168.5г
<span><span>Ca<span>(OH)</span>2</span>+<span>2<span>HCl</span></span> → <span>CaCl2</span>+<span>2<span>H2<span>O
</span></span></span></span>
H2C=CH-CH-CH2-CH-CH2-CH3
| |
C2H5 CH3