Помогите пожалуйста :з 

  • 1-2
    2-2
    3-2
    4-3
    5-1
    6-3
    7-1
    8-4
    10 1-г,-а,3-и,4-б
    111-а,б, 2-г,д, 3-д,в, 4-а.б
    Дано:
    w

    n
    Mr (в-ва) = 29∙ 3,93 = 114

    n (э) = w(э)
    n

    Найти: CxHy
    (C) : n (H) = 8:18 = CxHy =  С8H18

    = 3,93


    D(возд)

    ответ: С8H18
  • ∙ Mr(в-ва) Ar(э) ∙ 100%


    w

    (C) = 84,21%

    (Н) = 15,79%
    (H) = 15,79% ∙ 1141 ∙ 100% ≈ 18
    Решение:
    (C) = 84,21% ∙ 114 12 ∙ 100%  ≈8

    n

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