Interaction | Reaction | Process     Data Page

When a little dilute hydroxide is added to a solution of blue hexaaquacopper(II) ion, the complex cation acts as a Brønsted acid and loses two protons giving a precipitate of blue tetraaquadihydroxycopper(II) and two waters.

[Cu(H2O)6]2+

  +  
2
NaOH(aq)
         

Cu(H2O)4(OH)2
Cu(OH)2

  +  
2
Na+
  +  
2
H2O
Reactant Page Go To Go To
Hexaaquacopper(II) ion     Reactions Using    Reactions Forming
Sodium hydroxide solution     Reactions Using    Reactions Forming
Tetraaquadihydroxycopper(II)     Reactions Using    Reactions Forming
Sodium ion     Reactions Using    Reactions Forming
Water     Reactions Using    Reactions Forming

Interaction, Reaction, Process defined as:
British A-Level Chemistry: A2
Precipitation
Proton transfer: Brønsted reaction

© Mark R. Leach 1999 –


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