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QUESTION
Calculate the amounts of Na2HPO4 and NaHPO4 (in grams) needed to prepare 200 mL of a buffer pH = 8.25 so that the sum of concentrations of HPO42- and...
Calculate the amounts of Na2HPO4 and NaHPO4 (in grams) needed to prepare 200 mL of a buffer pH = 8.25 so that the sum of concentrations of HPO42- and H2PO4- ions is 0.5 M.
