81 Решение задачки по химии №08 109

10. A mixture of calcium sulfite and calcium carbonate with a total mass of 60 g was treated with an excess of hydrochloric acid. The evolved gas can discolor 158 g of a 10% solution of potassium permanganate, acidified with sulfuric acid. Calculate the mass fractions (in %) of the substances in the mixture.

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