Organic Chemistry · Chapter 10: Nitrogen & Phosphorous Compounds

Question

HPO42- → PO43- pKa is ____.

Answer

HPO42- → PO43- pKa is 12.32.
HPO 4 2- → PO 4 3- pK a is 12.32.
Note: The pKa for the loss of the first hydrogen is 2.15; for the second, 7.20; and for the third, 12.32.

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