Chapter 17, Problem 67E

Interpretation Introduction

Interpretation:

If the value of $\left[{\text{Cl}}^{-}\right]$ is $7.49\times {10}^{-8}\text{M}$, then the value of $\text{pCl}$ is to be calculated.

Concept introduction:

Concentration of a species can be expressed in different ways. Very low concentrations are usually expressed as logarithm of base $10$. Logarithm of base $10$ is written as $\text{p}$. Value of $\text{pX}$ is written as $-{\log }_{10}\text{X}$. Value of $\text{pX}$ is always in whole numbers.