Chapter 10, Problem 10.28P

Interpretation Introduction

Interpretation:

The fraction in the form ${\text{BH}}_{\text{2}}^{\text{2+}}$ at given $\text{pH}$ using equation 10-19 has to be calculated.

Concept introduction:

Let us consider the diprotic system,

${\text{fraction in the form H}}_{\text{2}}\text{A:}{\text{α}}_{{\text{H}}_{\text{2}}\text{A}}\text{=}\frac{\left[{\text{H}}_{\text{2}}\text{A}\right]}{F}=\frac{{\left[{\text{H}}^{\text{+}}\right]}^{\text{2}}}{{\left[{\text{H}}^{\text{+}}\right]}^{\text{2}}\text{+}\left[{\text{H}}^{\text{+}}\right]{\text{K}}_{\text{1}}{\text{+K}}_{\text{1}}{\text{K}}_{\text{2}}}$

The fraction in the form ${\text{H}}_{\text{2}}\text{A}$ as ${\alpha }_{{\text{H}}_{\text{2}}\text{A}}$