Problem- in a solution of 243 mm sodium phosphate buffer so, Chemistry

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Problem- in a solution of 243 mm sodium phosphate buffer so

Problem- In a solution of 243 mM sodium phosphate buffer (so the concentration represents all forms of phosphate no matter the ionization state) at pH 7.2, what is the ratio of HPO4-2 to H2PO4- ? The pKa's of phosporic acid are 2.15, 6.86 and 12.32. The answer is unitless but reports your answer to the nearest 0.01.

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Chemistry: Problem- in a solution of 243 mm sodium phosphate buffer so

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