Задание 8................
Дано W(С)=81.82%=0.8182 W(H)=18.18%=0.1818 V(CxHy)=1 L m(CxHy)=2.6 g -------- CxHy-? M(CxHy)=m(CxHy)*Vm/V(CxHy)=2.6*22.4/1=58.24g/mol CxHy/58.24 = 0.8182/12 : 0.1818/1 CxHy=4:10 C4H10 ответ бутан