Metal cations in solution are composed to H2O molecules and exist as hydrated ions. For example, Ni^2+ complexes to form the hydrated ion Ni(H2O)6^2+. Metal cations are also able to complex to other ligands, such as NH3. Part 1: An aqueous solution in which 0.00166 mol Ni(NO3)2 and 0.353 mol NH3 are dissolved in a total volume of 1.00 L. Classify the species present in the resulting solution according to their relative amounts. Kf for Ni(NH3)^2+ is equal to 5.5*10^8. The part that I need help on is part 3: calculate the concentration of Ni(H2O)6^2+ ions at equilibrium in the solution formed.

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Coordination Chemistry

It is a part of chemistry, in which the study of compounds that have central atoms surrounded by molecules or ions, known as ligand, is known as coordination chemistry.