71. unknown metal nitrate dissolved in water and the re

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71. unknown metal nitrate dissolved in water and the resulting solution was divided into two equal parts. To one portion was added magnesium to another - such as weight of manganese. After the reaction mass in the second part of the precipitate was 3.1 g less than the first. After the addition of excess hydrochloric acid to both precipitation are partially dissolved, and their masses are equal and amounted to 21.6 g Determine the unknown metal.

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


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