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April 20, 2014

Homework Help: Chemistry

Posted by Anonymous on Saturday, October 30, 2010 at 7:29pm.

Calculate the amount of NaH2PO4 and Na2HPO4 needed to prepare 100 mL of a buffer with a pH = 8.25 so that the sum of concentrations of HPO4 and H2PO4 ions is 0.5 M.
Where do I start? :/

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