A solution is prepared by adding 0.14 mole Na2HPO4 and 8.2 grams of NaH2PO4 to sufficient water to prepare 1.00 L of solution. What is the pH of the solution? What is the pH of the solution after 0.041 moles HCl are added?If needed, use the following equation: pH = pKa + log(A-/HA)
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