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Автор - oldside

Решение задач на нахождение формул вещества по массовым долям элемента​

Ответ

Автор - terekosmayev

C8H16

w(C) = (8*12) / (8*12 + 16*1)= 96 / 112 = 0.857 или 85,7%

w(H) = 16 / 112 = 0.143 или 14.3%

С3Н4

w(C) = 3*12 / (3*12 + 4) = 36/40 = 0.9 или 90%

w(H) = 1 - 0.9 = 0.1, или 10%

w(C) = 0.89

w(H) = 0.11

p(H2) = 27

C = 0.89 *54/12 = 4

H = 0.11 * 54/ 1= 6

C4H6

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