Which of the following acids (listed with pK_a values)and their conjugate base would form a buffer with a pH of 8.10? A) HC₂H₃O₂, pK_a = 4.74 B) H₂SO₃, pK_a = 1.77 C) HClO, pK_a = 7.54 D) HIO, pK_a = 10.64 E) HNO₂, pK_a = 3.34

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Quizplus · Accepted Answer

To form a buffer, a weak acid and its conjugate base need to be used. The pH of the buffer is determined by the pKa of the weak acid. The pKa for HClO is closest to a pH of 8.10, indicating that it would form a buffer at that pH. None of the other options have pKa values close enough to 8.10 to form a buffer at that pH.

Which of the Following Acids (Listed with PKa Values)and Their

Which of the Following Acids (Listed with PK_a Values)and Their