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Какая масса воды требуется для получения 180 грамм 10% раствора хлорида кальция?
Ответы 1
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180г-100% х -10%х=180*10/100=18 г хлорида кальция содержится в данной смеси180-18=162г воды необходимо взятьОтвет: m(H2O)=162г
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Автор:
eddiemiles - 6 лет назад
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