Problem

Consider the following acids and their dissociation constants:HPO42- (aq) + H2O(l)⇆H3O + (...

Consider the following acids and their dissociation constants:

HPO42- (aq) + H2O(l)⇆H3O + (aq) + PO43− (aq)Ka = 2.2 X 10−13

HCHO2(aq) + H2O(l)⇆H3O + (aq) + CHO2 (aq)Ka = 1.8 X 104

a. Which is the weaker acid, HPO42− or HCHO2?


b. What is the conjugate base of HPO42- ?


c. Which acid has the weaker conjugate base?


d. Which acid has the stronger conjugate base?


e. Which acid produces more ions?

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