Which of the Following Is True of a Buffer Solution

Multiple Choice

Which of the following is true of a buffer solution prepared by mixing equal concentrations of an acid and its conjugate base?

A) The buffer capacity depends on the concentration of the acid and the base.
B) The pH of the solution is equal to the pK_a of the conjugate base.
C) The buffer capacity depends on the concentration of the acid and the base, and the pH of the solution is equal to the pK_a of the conjugate base.
D) None of these.