66 Решение задачки по химии №06 614

13. From a sample of 11.650 g of a sample of sulfuric acid in a volumetric flask with a volume of 1000 cm3, a solution was obtained, and 23.30 cm3 of 0.2000 N is used for titration of 25.00 cm3. KOH solution. What percentage of sulfuric anhydride is in the sulfuric acid sample?

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