Chapter 12, Problem 12.17P

Interpretation Introduction

Interpretation:

Values of $\text{pH}$ in presence of $\text{0}\text{.010 M NaOH}$ and $\text{0}{\text{.040 M LiNO}}_3$  with activities included and with activities excluded have to be calculated.

Concept Introduction:

Extended Debye Huckel law quantifies activity coefficient in terms of ionic strength and hydrated size as follows:

  $\log \text{γ}=\frac{-0.51z^2\sqrt{\text{μ}}}{1+\left(\text{α}\sqrt{\text{μ}}\text{/}305\right)}$

Here

$z$ denotes charge.

$\text{μ}$ denotes ionic strength.

$\text{γ}$ denotes activity coefficient.

$\text{α}$ denotes ionic size.