Multiple Choice
What ionic form(s) is/are most prevalent at pH 7.0? The pKa values of phosphoric acid are 2.1, 7.2, and 12.4.
A) HPO4−2
B) H2PO4−
C) HPO4−2 and PO4−3
D) H2PO4− and HPO4−2
E) All are correct
Correct Answer:

Verified
Correct Answer:
Verified
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