Chapter 16.7, Problem 3CP

The diagrams show solutions of three different weak acids with formulas $\text{HX, HY, and HZ}{\text{. List the anions X}}^{\text{-}}{\text{, Y}}^{\text{-}}{\text{, and Z}}^{\text{-}}$ in order of increasing value.

$\begin{array}{l}\text{a)}\hfill \\ {\text{Z}}^{\text{-}}{\text{< Y}}^{\text{-}}{\text{< X}}^{\text{-}}\hfill \\ \text{b)}\hfill \\ {\text{Y}}^{\text{-}}{\text{< Z}}^{\text{-}}{\text{< X}}^{\text{-}}\hfill \\ \text{c)}\hfill \\ {\text{Z}}^{\text{-}}{\text{< X}}^{\text{-}}{\text{< Y}}^{\text{-}}\hfill \\ \text{d)}\hfill \\ {\text{X}}^{\text{-}}{\text{< Y}}^{\text{-}}{\text{< Z}}^{\text{-}}\hfill \\ \text{e)}\hfill \\ {\text{X}}^{\text{-}}{\text{< Z}}^{\text{-}}{\text{< Y}}^{\text{-}}\hfill \end{array}$