Предмет: Химия, автор: SofiaYaremchuk24

пе-
2. Обчисліть масові частки всіх елементів у сполуках: а) гідроген
роксид H2O2; б) гліцерол С3Н803.

Ответы

Автор ответа: veronikaleyts
0

Ответ:

Mr[H2O2] = Ar[H] * 2 + Ar[O] * 2 = 1 * 2 + 16 * 2 = 34

ω (H) = 2 : 34 * 100 = 6 %

ω (O) = 32 : 34 * 100 = 94 %

Mr[C3H8O3] = Ar[C] * 3 + Ar[H] * 8 + Ar[O] * 3 = 12 * 3 + 1 * 8 + 16 * 3 = 92

ω(C) = 36 : 92 * 100 = 39 %

ω (H) = 8 : 92.09382 * 100 = 9 %

ω (O) = 47.9982 : 92.09382 * 100 = 52 %

Объяснение:

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