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Ch.17 - Acids and Bases

Chapter 17, Problem 31a

Identify each substance as an acid or a base and write a chemical equation showing how it is an acid or a base according to the Arrhenius definition. a. HNO3(aq)

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Hey everyone, we're asked to identify whether our phosphoric acid is an Arrhenius acid or an Arrhenius base and to write a chemical equation showing it as an acid or a base. Now we've learned that an Arrhenius asset is one that increases the concentration of our hydrogen ions, while an Arrhenius base is one that increases the concentration of our hydroxide ions. So when we write our chemical equation, we're going to have our phosphoric acid and this will disassociate into our hydrogen ion plus our phosphate ion. And to balance us out, we have a three prior to our hydrogen ion, as we can see right here, we had an increase in our hydrogen ions, which means that we have an Arrhenius acid. So I hope that made sense. And let us know if you have any questions.