115. Задачка по химии №011 547

48. For the determination of bismuth oxycarbonate (BiO)2CO3 in a medicinal preparation, 0.200 g of the sample was dissolved in dilute nitric acid and Bi3 precipitated as BiOCl by adding Cl-. It was found that after drying at 100ºС, the weight of the precipitate is 0.0512 g. Calculate the percentage of (BiO)2CO3 in the sample.

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