Предмет: Химия, автор: pnovikova05ozp9hx

Массовая доля костей составляет 20% от общей массы организма.На долю фосфата кальция,входящего в состав костей,приходится также 20% от массы костей. Зная массу тела ,рассчитать ,сколько кг фосфата кальция содержится в организме?Сколько кг кальция содержится в нем ? При массе тела 60 кг

Ответы

Автор ответа: ketrin03122010

20% от 60 кг- 12кг
20%от 12кг- 2,4кг

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