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2. a. What is the ratio of H2PO4 to H3PO4 at a pH of3? Phosphoric acid, pKal = 2.12, pKa2 = 7.21, and pKa3 =

2. a. What is the ratio of H2PO4 to H3PO4 at a pH of3? Phosphoric acid, pKal = 2.12, pKa2 = 7.21, and pKa3 = 12.32 b. If 3 volumes of 9 mM NaOH are mixed with 1 volume of 20 mM Phosphoric acid (H3PO4), what will be the pH of the final mixture

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