Phosphoric acid h3po4 is a triprotic acid for which ka172 x
Phosphoric acid, H3PO4, is a triprotic acid, for which Ka1=7.2 x 10-3, Ka2 = 6.3 x 10-8 and Ka3 = 4.2x 10-13. What is the value of Kb for hydrogen phosphate anion, HPO4 2-?
a. 6.3 x 10-8
b. 4.2 x 10-13
c. 1.4 x 10-12
d. 1.6 x 10-7
e. 2.4 x 10-2
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