Chapter 4, Problem 36CTQ

Interpretation Introduction

Interpretation: Mistake of student for $-9$ as answer for energy released when lone pair on ${\text{H}}_{\text{2}}{\text{N}}^{-}$ makes bond with ${\text{H}}^{+}$ should be determined.

Concept introduction: According to the Bronsted-Lowry concept, a substance that donates proton is termed as acid while that accepts or gains protons is called a base. Species formed after loss of protons from acids are known as their respective conjugate bases whereas conjugate acid is produced by the addition of protons to base.