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Question
A buffer solution is prepared by dissolving 0.200 mol of NaH2PO4 and 0.100 mol of NaOH in enough water to make 1.00 L of solution. What is the pH of the H2PO4-/HPO42- buffer if theKa2 = 6.2 10-8?
A) 6.91
B) 7.21
C) 7.51
D) 7.71
Answer
This answer is hidden. It contains 1 characters.
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