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October 24, 2014

Homework Help: AP Chemistry

Posted by HELP PLEASE on Monday, March 12, 2012 at 6:42pm.

A buffer, consisting of H2PO4− and HPO42−, helps control the pH of physiological fluids. Many carbonated soft drinks also use this buffer system. What is the pH of a soft drink in which the major buffer ingredients are 7.20 g of NaH2PO4 and 4.90 g of Na2HPO4 per 355 mL of solution?

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