Question

W(c)=83,7%
D(O2)=2,69
найти:
CxHy

Answer 1

D (O2) = 2,69
Μ (CxHy) = 2,69 • M (O2) = 2,69 • 32 = 86 г/моль

W (C) = 12x/86 = 0,837
6x/43 = 0,837
x = 43•0,837/6 = 6

12•6 + y = 86
y = 14

Ответ: С6Н14 - гексан.