Chapter 16, Problem 8E

Interpretation Introduction

Interpretation:

The $\text{pH}$ value for the given $\text{0}\text{.18}\text{M}$${\text{CH}}_{\text{3}}{\text{NH}}_{\text{2}}$ solution, $\text{0}\text{.18}\text{M}$${\text{CH}}_{\text{3}}{\text{NH}}_3\text{Cl}$ solution and mixture of $\text{0}\text{.18}\text{M}$${\text{CH}}_{\text{3}}{\text{NH}}_{\text{2}}$ with $\text{0}\text{.18}\text{M}$${\text{CH}}_{\text{3}}{\text{NH}}_3\text{Cl}$ is to be calculated.

Concept introduction: The $\text{pH}$ value determines if a given solution is acidic, basic or neutral in nature.
The $\text{pH}$ value of the given solution is calculated by the formula,

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

To determine: The $\text{pH}$ value for the given $\text{0}\text{.18}\text{M}$${\text{CH}}_{\text{3}}{\text{NH}}_{\text{2}}$ solution, $\text{0}\text{.18}\text{M}$${\text{CH}}_{\text{3}}{\text{NH}}_3\text{Cl}$ solution and mixture of $\text{0}\text{.18}\text{M}$${\text{CH}}_{\text{3}}{\text{NH}}_{\text{2}}$ with $\text{0}\text{.18}\text{M}$${\text{CH}}_{\text{3}}{\text{NH}}_3\text{Cl}$ .