State complex-forming reaction with edta

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Reference no: EM13182187

Calcium concentrations in solutions may be determined by a complex-forming reaction with EDTA. The reaction takes place between Ca2+ and EDTA4- with a formation constant of 4.5 x1010. At a pH = 11.00 the conditional formation constant Kf = 3.9 x1010. What is the approximate fraction of species of EDTA4- at this pH?

Reference no: EM13182187

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