Do Nickel(II) and Copper(II) form Bis- or Tris- Complexes?

Transition metal ions combine easily with neutral molecules or anions (ligands) to form coordination complexes.  This experiment measures the heat evolved during the chelation of nickel(II) and copper(II) to determine the maximum number of ethylenediamine molecules that have chelated in each complex ion.

Click "Resources" below for a PDF of the experiment. 

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