Multiple Choice
Phosphoric acid, H3PO4, is a triprotic acid, for which Ka1 = 7.2 × 10−3, Ka2 = 6.3 × 10−8 and Ka3 = 4.2 × 10−13. What is the value of Kb for the hydrogen phosphate anion, HPO4?
A) 6.3 × 10 −8
B) 4.2 × 10 −13
C) 1.4 × 10 −12
D) 1.6 × 10 −7
E) 2.4 × 10 −2
Correct Answer:
Verified
Correct Answer:
Verified
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