June 2022 1 15 Report
1)Какова концентрация полученного раствора,если 150г,соли растворили 600г воды.2)Приготовить 50г 2%-го раствора KMO₄
3)Сколько нужно взять воды и сахара,чтобы приготовить 2кг 45%-ого раствора
4)Какое кол-во соли необходимо,чтобы приготовить 240 10%-ого раствора
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