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The Equation That Represents Ka2 for Phosphoric Acid Is

Question 48

Multiple Choice

The equation that represents Ka2 for phosphoric acid is


A) HPO42-(aq) + H2O(l) ? PO43-(aq) + H3O+(aq)
B) H2PO4-(aq) + H2O(l) ? HPO42-(aq) + H3O+(aq) .
C) H3PO4(aq) + 2H2O(l) ? HPO42-(aq) + 2H3O+(aq) .
D) HPO42-(aq) + H2O(l) ? H2PO4-(aq) + OH-(aq) .
E) H3PO4(aq) + H2O(l) ? H2PO4-(aq) + H3O+(aq) .

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