Предмет: Химия, автор: Rayzuko

Вычислите процентную концентрацию раствора, содержащего 40 г NaCl в 160 мл воды.

Ответы

Автор ответа: salve12

Ответ:

Концентрация: 40/200=1/5 или 0.20 или 20%

Объяснение:

Масса раствора: 40+160=200

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