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Unformatted text preview: Phosphate is a triprotic acid with 3 pK's. pK 1 =2.2, pK 2 =7.2, pK 3 =12.4. In a solution of 0.01 M phosphate buffer at pH 7.0 (i.e. concentration of all protonated species is 0.01 M), what is the M of each of the individual species, i.e. what are the following concentrations: [H 3 PO 4 ], [H 2 PO 4-1 ], [HPO 4-2 ], and [PO 4-3 ] ? Show your work. Dr. Light...
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- Spring '06