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kirill1819999
@kirill1819999
May 2021
1
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Вычислите массовые доли химических элементов в : пропане.
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Дано:
С
₃H₈
Найти: w(C), w(H)
Решение:
Mr(
С₃H₈
) = 12·3 +1·8 = 44
w(э) = n(э)·Ar(э)\Mr(в-ва)
w(C) = 3·12\44 = 0,819 или 81,9%
w(H) = 8·1\44 = 0,191 или 19,1%
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Answers & Comments
Verified answer
Дано:С₃H₈
Найти: w(C), w(H)
Решение:
Mr(С₃H₈) = 12·3 +1·8 = 44
w(э) = n(э)·Ar(э)\Mr(в-ва)
w(C) = 3·12\44 = 0,819 или 81,9%
w(H) = 8·1\44 = 0,191 или 19,1%