125. Задачка по химии №012 571

To determine the carbonate content in the potassium hydroxide reagent, a solution of this alkali was titrated with hydrochloric acid. When titrated with phenolphthalein, 24.2 ml was consumed, and with methyl orange - 26.8 ml of hydrochloric acid solution. Determine the percentage of potassium carbonate in the reagent.

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