Chapter 8, Problem 87P

Interpretation Introduction

Interpretation:

For an acid − base reaction, one way to determine the position of equilibrium is to say that the larger of the equilibrium arrow pair points to the acid with the higher value of pKa.

For example:

${\text{CH}}_{\text{3}}\text{COOH}$ + ${\text{HCO}}_{\text{3}}{}^{-}$${\text{CH}}_{\text{3}}{\text{COO}}^{-}$ + ${\text{H}}_{\text{2}}{\text{CO}}_{\text{3}}$

$\text{pKa }=\text{ 4}.\text{75}$

$\text{pKa }=\text{ 6}.\text{37}$

$$ The working of this rule should be explained.

Concept Introduction:

There are associated scales within the chemistry utilized to find out how basic and acidic a solution is, as well as the strength of bases and acids. Though most familiar is pH scale, K_a, pKa, K_b and pK_b are the common calculation which offer understanding into acid-base reactions.