Предмет: Химия, автор: lol151665

Яка масова частка Оксигену у СаСО3? Відповідь впишіть у відсотках​

Ответы

Автор ответа: dyexfnf
1

Ответ:

Объяснение:

Mr(CaCO3) = Ar(Ca) + Ar(C) + Ar(O) * 3 = 40 + 12 + 16 * 3 = 100%

w(O) = Ar(O) * n /Mr(CaCO3) * 100% = 16 * 3/100 * 100% = 48%

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