Yahoo Answers is shutting down on 4 May 2021 (Eastern Time) and the Yahoo Answers website is now in read-only mode. There will be no changes to other Yahoo properties or services, or your Yahoo account. You can find more information about the Yahoo Answers shutdown and how to download your data on this help page.

Jaskaran Singh
Lv 5
Jaskaran Singh asked in Science & MathematicsChemistry · 8 years ago

How is the Stability of a coordination compound in solution decided?

& How is dissociation constant of a complex defined !????

Chemistry CBSE +2

1 Answer

Relevance
  • steve_geo1
    Lv 7
    8 years ago
    Favourite answer

    It can be defined in two ways. One can write the reaction "forward" resulting in a formation constant, Kf, or "backwards" resulting in an instability constant.

    Cu2+ + 4NH3 ===> Cu(NH3)4(2+)

    Kf = [Cu(NH4)(2+)]/[Cu2+][NH3]^4

    Cu(NH3)4(2+) ===> Cu2+ + 4NH3

    Kinst = [Cu2+][NH3]^4/[Cu2+][NH3]^4

    So long as the equilibrium constant is defined and you are consistent, either way should be good.

Still have questions? Get answers by asking now.