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What is the value of K a for HPO 4 2- ? Blank 1 What is the value of K b for HPO 4 2-

What is the value of Ka for HPO42-? Blank 1

What is the value of Kb for HPO42-? Blank 2

Will HPO42- give an acidic, basic or neutral solution? Blank 3

A table of Ka values shows the following for phosphoric acid, H3PO4.

Ka1 = 7.5x10-3

Ka2 = 6.2x10-8

Ka3 = 4.2x10-13

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