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lauraK
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Problem: Need to prepare a 250 mL buffer of pH 7.00 using equimolar K2HPO4 and KH2PO4 solutions. Ka for phosphoric acid:
Ka1=7.2
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First--how did you try to solve the problem? If you do not know where to start, I suggest you draw a picture of the fence and then write down what you know about each side.