Chapter 24, Problem 9STP

Interpretation Introduction

Interpretation: To show the reaction when glycine acts as a base in reaction with water.

Concept introduction: Amino acids are amphoteric in nature since it has both carboxyl and amino acid groups which means they can behave as both acid and base.

Answer to Problem 9STP

The chemical equation where glycine acts as a base can be depicted as follows:

  

Explanation of Solution

Glycine can act as both acids as well bases. About all amino acids exist in zwitter ions. In acidic conditions, glycine can act as a base.

The reaction of glycine with acid leads to the formation of a positive ion as the carboxylate ion gains a proton.

The chemical equation can be depicted as follows:

  

Conclusion

In acidic conditions, glycine behaves as a base, it leads to the formation of a positive ion as the carboxylate ion gains a proton.