Chapter 20, Problem 20.8P

Interpretation Introduction

Interpretation:

The $\text{pH}$ value and $\text{pOH}$ value of $\text{0}\text{.020M Ba}{\left(\text{OH}\right)}_{\text{2}}\left(\text{aq}\right)$ solution has to be calculated.

Concept Introduction:

$\text{pH}$: The concentration of hydrogen ion is measured using $\text{pH}$ scale. The $\text{pH}$ of a solution is a figure that expresses the acidity or the alkalinity of a given solution.

It is defined as the negative base-10 logarithm of the hydrogen or hydronium ion concentration.

  $\text{pH}\text{=}{\text{-log[H}}_{\text{3}}{\text{O}}^{\text{+}}\text{]}$

  $\begin{array}{c}\text{pH}\text{=}\text{-}\text{log}\left({\text{H}}_{\text{3}}{\text{O}}^{\text{+}}\right)\\ \text{pOH}\text{=}\text{-}\text{log}\left({}^{\text{-}}\text{OH}\right)\\ \text{pH}\text{+}\text{pOH}\text{=}\text{14}\end{array}$