Chapter 16, Problem 92IAE

Interpretation Introduction

Interpretation:

The reason for the large difference in pKa1 and pKa2 value of oxalic acid than suberic acid needs to be explained.

Concept introduction:

In the water, the product of concentration of OH- and H+ ions at a specific temperature is recognized as ionic product i.e. Kw of water. The Kw values increment with the increment in temperature which means the OH- and H+ ion’s concentration increments with the increment in temperature. The Kw value is $\text{1}\times {\text{10}}^{-4}$ at 25 ⁰C. The $p{K}_a$ for an acid can be calculated as follows:

$p{K}_a=-\log \left(K_a\right)$

Here, $K_a$ is acid dissociation constant of an acid.