Предмет: Химия, автор: anastsia2011sms

Розв'язати задачу Обчисліть масову частку кожного елемента у Фосфор (V) оксид Р2О5

Ответы

Автор ответа: dmitriysp33

1

Ответ:

mr(p2o5) = 31×2+16×5=142

%p= 62/142=44% %o=100-44=56%

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