A buffer consisting of h2po41- and hpo42- helps control the


A buffer, consisting of H2PO4^1- and HPO4^2-, 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 6.4 g of NaH2PO4 and 8.4 g of Na2HPO4 per 355 mL of solution?

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