Д151 From 5 liters of a solution of potassium hydroxide

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Uploaded: 07.08.2016
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151. From 5 liters of a solution of potassium hydroxide KOH to a mass fraction of 50% and a density of 1.538 g / cm3 is necessary to prepare a solution with a mass fraction of 18% KOH. How much water is needed?

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