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

Multiple Choice

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) 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