Formation or Stability Constants of Complexes

Among imperfect complexes, we can again deal with the cases of 

Let s recall that metallic ions often stand as aqua complexes in aqueous solutions. Complexes formation reactions are, therefore, exchange reactions between the water ligand and the incoming ligand. We symbolize these reactions as follows  

Two sets of formation or stability constants are used the stepwise stability constants (or successive stability constants) and the overall stability constants. The first type is defined by the following expressions  

For the sake of simplicity, the electrical charges and the water molecules engaged as ligands are omitted in these expressions. The overall stability constants are defined by the following expressions  

24 Stability of Complexes Some Elements Concerning the Kinetics... 

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