2<span>CH3-CH2-OH----Al2O3, 425 *C------<span>>CH2=CH-CH=CH2 + 2H2O+H2</span></span>
<span><span>CaCO3+4C=CaC2+3CO</span></span>
<span><span>CaC2+2H2O=Ca(OH)2 + C2H2</span></span>
<span><span>C2H2+H2--Ni(Pt)---> C2H4 +H2O--H2SO4--><span>CH3-CH2-OH</span></span></span>
<span><span><span>CH3-CH2-OH + HCl=<span>CH3-CH2-Cl + H2O</span></span></span></span>
<span><span><span><span><span>CH3-CH2-Cl-----KOH(спирт)----->CH2=CH2+ KCl+ H2O</span></span></span></span></span>
2NaCl+H²So4+2Hcl
n(Nacl)=5,85г/моль=0,1 моль
по уравнению
V(HCL)=0,1МОЛЬ*22,4л/МОЛЬ=2,24л
Ответ:2,24 л