Exhibit 2B Contains Information on the PK's of Some Common

Multiple Choice

Exhibit 2B Contains information on the pK's of some common buffers. Which of the following is important to know when deciding if a given buffer will be effective for an experiment?

A) the pK_a of the buffer compound
B) the buffer capacity
C) the concentration of the buffer
D) whether the experiment is likely to generate hydrogen ions or hydroxide ions
E) all of these are important considerations