33. Сребрено огледало

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33. Сребрено огледало
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2020-02-22 - commons.wikimedia.org

Summary

Firstly the Tollens reagent – [Ag(NH3)2]OH(aq), is prepared by adding concentrated aqueous ammonia to a silver nitrate solution. In the beginning a dark brownish precipitate forms that dissolves in an excess of NH4OH(aq): 2AgNO3(aq) + 2NH4OH(aq) = Ag2O(s) + 2NH4NO3(aq) + H2O(l) Ag2O(s) + 4NH4OH(aq)

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Details

  • Source collection: Wikimedia Commons
  • License: CC / Public Domain
  • Category: Space

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