The pKa values of an amino acid are the following: pK1 = 2.18;  pK2 = 8.95;  pK3 = 10.53, what is the isoelectric point of the amino acid? Show the solution and express the your answer in three significant figures.

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Spectroanalytical Methods

Spectroanalytical methods measure the wavelength and intensity of radiations that are either emitted or absorbed by a molecular or atomic species. These methods are useful for evaluating the electronic or atomic arrangement of the molecules of a given analyte.