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

question 107

Multiple Choice

Which of the following acids (listed with pK_a values) and its conjugate would be the best choice to make a buffer with a pH of 10.40?

• A) HC₇H₅O₂, pK_a = 4.19
• B) HF, pK_a = 3.46
• C) HClO, pK_a = 7.54
• D) HCN, pK_a = 9.31
• E) HClO₂, pK_a = 1.96

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