Multiple Choice
Which may be used to prepare a buffer having a pH of 8.8? Ka = 7 × 10-3 for H3PO4; 8 × 10-8 for H2PO4-; 5 × 10-13 for HP O42-
A) NaH2PO4 only
B) NaH2PO4 and Na2HPO4
C) Na3PO4 and Na2HPO4
D) NaHPO4 and H3PO4
E) H3PO4 and Na3PO4
Correct Answer:
Verified
Correct Answer:
Verified
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