Дано
CxHy
w(C) = 82.76% = 0.8276
w(H) = 17.24% = 0.1724
D(O2) = 1.8125
Решение
Mr(CxHy) = D(O2) * Mr(O2) = 1.8125 * 32 = 58
w(C) = xAr(C) / Mr(CxHy) = 12x / 58 = 0.8276
12x / 58 = 0.8276
12x / 58 = 0.8276
12x = 48
x = 4
y = (Mr(CxHy) - xAr(C)) / Ar(H) = (58 - 4 * 12) / 1 = 10
C4H10
Ответ: C4H10