Chapter 17, Problem 41QP

The following diagrams represent solutions at various stages in the titration of a weak base B (such as ${\text{NH}}_{\text{3}}$ ) with $\text{HCl}$. Identity the solution that corresponds to (x) the initial stage before the addition of $\text{ HCl}$, (s) halfway to the equivalence point. (3) the equivalence point. (4) beyond the equivalence point. Is the pH greater than, less than, or equal to 7 at the equivalence point? Water and ${\text{Cl}}^{\text{-}}$ ions have been omitted for clarity.