Answered: Is it possible to obtain negative…

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Question

Is it possible to obtain negative values of the absorbance and in what conditions?

In reference to Beer's Law.

Expert Solution

Step 1: Introduction to Beer's Law

Beer's Law states that the absorbance of a solution is directly proportional to the concentration of the absorbing species and the path length. Mathematically, it can be expressed

$bold italic A bold italic b bold italic s bold italic o bold italic r bold italic b bold italic a bold italic n bold italic c bold italic e bold left parenthesis bold italic A bold right parenthesis bold italic equals bold italic epsilon bold italic c bold italic l$ where

A is the absorbance
l is the path length
c is the concentration of the absorbing species
$epsilon$ is the absorptivity

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