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At which pH will a solution of proline have equal concentrations of its fully protonated species and zwitterion species, [H2AA+] = [HAA] pKa1 = 1.99

At which pH will a solution of proline have equal concentrations of its fully protonated species and zwitterion species, [H2AA+] = [HAA]

pKa1 = 1.99 pKa2 = 10.96 pI = 6.48

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Fully Protonated Zwitterion Fully Deprotonated (H2AA) (HAA) (AA) pKa1 pKa2

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