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Автор - КостяМоряк

запишите молекулярную формулу глюкозы. Найдите ее молекулярную массу и массовые доли каждого элемента в % в ней.

Ответ

Проверено экспертом

Автор - Tizifona
C6H12O6 — глюкоза.
Мr(C6H12O6) = 12 · 6 + 1 · 12 + 16 · 6 = 180
W%(C) = 6Ar(C) : Mr(C6H12O6) · 100% = 72 : 180 · 100% = 40%
W%(H) = 12Ar(H) : Mr(C6H12O6) · 100% = 12 : 180 · 100% = 6,67%
W%(O) = 6Ar(O) : Mr(C6H12O6) · 100% = 96 : 180 · 100% = 53,33%

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