## Chemistry and Chemical Reactivity (9th Edition)

Published by Cengage Learning

# Chapter 3 Chemical Reactions - Study Questions - Page 137b: 24

#### Answer

See answer below.

#### Work Step by Step

First hydronium: $H_3PO_4(aq)+H_2O(l)\rightarrow H_2PO_4^-(aq)+H_3O^+(aq)$ Second hydronium: $H_2PO_4^-(aq)+H_2O(l)\rightarrow HPO_4^{2-}(aq)+H_3O^+(aq)$ Third hydronium: $HPO_4^{2-}(aq)+H_2O(l)\rightarrow PO_4^{3-}(aq)+H_3O^+(aq)$

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