39. Solving a chemistry problem
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39. Solving a chemistry problem
2. From the initial sample of 0.4500 g of the substance, during the analysis, a mixture of potassium and sodium sulfates was isolated, the mass of which is 0.1634 g. After the precipitation of the sulfate ions of the mixture with a solution of barium chloride, a precipitate of barium sulfate weighing 0.2626 g was obtained. K2O and Na2O in the initial sample of the substance.
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