69. A portion of the powdered mixture of chromium and m

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69. A portion of the powdered mixture of chromium and manganese was treated with chlorine without heating, sample weight at the same time increased by 2.13, the resulting mixture is dissolved in water. The insoluble solid was separated and treated by heating with concentrated sulfuric acid. The separated gas was absorbed in 60 ml of a 0.2 M solution of potassium permanganate. Calculate the weight of the original sample.

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Detailed solution. Decorated in Microsoft Word 2003. (Target decided to use formula editor)


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