A buffer is made by dissolving 12.5 g of sodium dihydrogen phosphate, NaH 2 PO 4 ,
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A buffer is made by dissolving 12.5 g of sodium dihydrogen phosphate, NaH2PO4, and 15.0 g of disodium hydrogen phosphate, Na2HPO4, in a liter of solution. What is the pH of the buffer?
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