Предмет: Химия, автор: Battelfild10000000

К 400 граммам 90%-ного раствора ортофосфорной кислоты добавили 300 граммов воды. Рассчитай массовую долю растворённого вещества в образовавшемся растворе.

Ответ следует округлить до десятых.

Ответ:
%.

Ответы

Автор ответа: Zaxa14

Ответ:

51,4%

Объяснение:

Х=400*90/100= 360г H3PO4

400+300 =700г раствор

Х= 360*100/700= 51,4%

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