45. The metal sulfide MeS (metal compounds exhibit a de

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45. The metal sulfide MeS (metal compounds exhibit a degree of oxidation of 2 and 3) weighing 4.4 g was calcined in an excess of oxygen. The solid residue was dissolved in a precisely calculated amount of 37.8% nitric acid. Mass fraction of salt in the solution obtained amounted to 41.7%. Upon cooling, this solution was dropped 8.08 g of crystalline, and the mass fraction of salt in solution was decreased to 34.7%. Set crystalline formula.

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


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