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Of the choices below, which is true for the relationship shown? a. It is Ka for the acid H3P2O72−. b. It is Kb for the acid H3P2O72−. c. It is Ka for the acid H2P2O72−. d. It is Kb for the acid H2P2O7

Answer :

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The expression for the Ka for the given acid is:

Ka = [H2P2O7^2-] [H3O+] /[H3P2O7^2-]

Ka is the acid dissociation constant or the acidity constant. It is a measure of the acid strength when in solution. It is an equilibrium constant for the dissociation of the acid.

Answer:

It is Ka for the acid H3P2O72−.

Explanation:

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