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

Question 21

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Exhibit 2B Contains information on the pK's of some common buffers. Exhibit 2B Contains information on the pK's of some common buffers. Refer to Exhibit 2B . Which of the following would make the best buffer at pH =10.0? A) Acetic acid and sodium acetate B) Tris and its acid form C) H<sub>2</sub>CO<sub>3</sub> and NaHCO<sub>3</sub> D) Na<sub>2</sub>HPO<sub>4</sub> and NaH<sub>2</sub>PO<sub>4</sub> E) NaHCO<sub>3</sub> and Na<sub>2</sub>CO<sub>3</sub> Refer to Exhibit 2B . Which of the following would make the best buffer at pH =10.0?


A) Acetic acid and sodium acetate
B) Tris and its acid form
C) H2CO3 and NaHCO3
D) Na2HPO4 and NaH2PO4
E) NaHCO3 and Na2CO3

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