Chapter 3, Problem 4P

Interpretation Introduction

Interpretation:

The absorbance of a 1 mg/mL solution across a 1-cm path should be determined along with the percentage of transmission of incident-light.

Concept introduction:

The absorbance(A) of a solution is represented as

$\text{A=}{\text{log}}_{\text{10}}{\text{(I}}_{\text{0}}\text{/I)}$

In this equation I₀ is the incident-light intensity.

Transmitted-light intensity is denoted by I.

The relation between extinction coefficient, concentration and path length is denoted as l (in cm) as:

$\mathrm{A}=\epsilon lc$