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Calculate the overall complex dissociation equilibrium constant for the ion [Cu(NH_{3})_{4}]^{2+} , given that β_{4} for this complex is 2.1×10^{13}.

given: β_{4} = 2.1×10^{13}

The overall complex dissociation equilibrium constant is the reciprocal of the overall stability constant,

⇒

⇒ The overall complex dissociation equilibrium = 4.7×10^{-14}

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