Chapter 20.7, Problem 1.3ACP

Interpretation Introduction

Interpretation:

The concentration of $HClO$ in a 0.010M solution of $Cl{O}^{-}$ and $pH$ of the solution should be determined.

Concept introduction:

• The relation between acidic and basic constants $K_{a}and{K}_b$ with $K_w$ (equilibrium constant for water) is,

      $\begin{array}{l}{K}_a=\frac{1}{K_b}\times K_w\\ \\ K_w=K_b\times K_a\end{array}$

• $K_w$ can be written in another way as $K_w=\left[H_3{O}^{+}\right]\left[O{H}^{-}\right]$
• pH: The concentration of hydrogen ion is measured using $\text{pH}$ scale.  The acidity of aqueous solution is expressed by $\text{pH}$ scale.
• pOH: The $\text{pOH}$ of a solution is defined as the negative base-10 logarithm of the hydroxide ion ${\text{[OH}}^{\text{-}}\text{]}$ concentration. $\text{pOH}$ scale is analogous to pH scale.
• $pH=-\log \left[H_3{O}^{+}\right]$
• $pOH=-\log \left[O{H}^{-}\right]$