Interaction | Reaction | Process     Data Page

When excess dilute hydroxide is added to a ruby-red solution of hexaaquachromium(III) ion, the complex cation acts as a Brønsted acid and loses six protons giving a green solution hexahydroxychromium(III) ion, and six water molecules.

[Cr(H2O)6]2+
  +  
6
NaOH(aq)
         

[Cr(OH)6]3–
  +  
6
H2O
  +  
6
Na+
Reactant Page Go To Go To
Hexaaquachromium(III) ion     Reactions Using    Reactions Forming
Sodium hydroxide solution     Reactions Using    Reactions Forming
Hexahydroxychromium(III) ion     Reactions Using    Reactions Forming
Water     Reactions Using    Reactions Forming
Sodium ion     Reactions Using    Reactions Forming

Interaction, Reaction, Process defined as:
British A-Level Chemistry: A2
Ligand Exchange (Inorganic)
Proton transfer: Brønsted reaction

© Mark R. Leach 1999 –

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