State na3po4 per liter of solution

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For H3PO4, a tripotic acid, Ka1 = 7.1 × 10-3, Ka2 = 6.3 × 10-8, and Ka3 = 4.5 × 10-13. What is the pH of a solution which contains 0.300 moles of Na2HPO4 and 0.200 moles of Na3PO4 per liter of solution?

Reference no: EM13180545

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