Question: (a) Derive equations for ,H2A, H2A-, and A2- for a triprotic system. (b) Calculate the values of these fractions for phosphoric acid at pH 7.00.

(a) Derive equations for ,αH2A, αH2A-, and αA2- for a triprotic system.
(b) Calculate the values of these fractions for phosphoric acid at pH 7.00.

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