Exhibit 2B
Contains information on the pK's of some common buffers.
$\begin{array}{llrc}
\text { Buffer } & \mathbf{p K} 1 & \mathbf{p K 2} & \mathbf{p K} 3 \
\hline \text { Acetate } & 4.75 & & \
\text { Ammonia } & 9.25 & & \
\text { Carbonic acid } & 6.37 & 10.20 & \
\text { Citric acid } & 3.09 & 4.75 & 5.41 \
\text { Formic Acid } & 3.75 & & \
\text { Phosphoric acid } & 2.14 & 7.20 & 12.4 \
\text { Pyruvic acid } & 2.50 & & \
\text { Tris } & 8.3 & &
\end{array}$

-Refer to Exhibit 2B. A phosphate buffer would work well at this pH:

Question

Exhibit 2B
Contains information on the pK's of some common buffers.
$\begin{array}{llrc}
\text { Buffer } & \mathbf{p K} 1 & \mathbf{p K 2} & \mathbf{p K} 3 \
\hline \text { Acetate } & 4.75 & & \
\text { Ammonia } & 9.25 & & \
\text { Carbonic acid } & 6.37 & 10.20 & \
\text { Citric acid } & 3.09 & 4.75 & 5.41 \
\text { Formic Acid } & 3.75 & & \
\text { Phosphoric acid } & 2.14 & 7.20 & 12.4 \
\text { Pyruvic acid } & 2.50 & & \
\text { Tris } & 8.3 & &
\end{array}$

-Refer to Exhibit 2B. A phosphate buffer would work well at this pH:

Quizplus · Accepted Answer

Phosphate buffer works well at pH 7.0 and 8.0 because its pK2 is 7.20, which is close to both pH values.

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

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