Purchase Solution

Understanding Beer's Law

Not what you're looking for?

Ask Custom Question

What is Beer's law? Use Beer's law to mathematically determine the unknown concentration values. How do the values derived from Beer's law compare to those derived from the graph?

Purchase this Solution

Solution Summary

Full explanation with solution graph. 474 words.

Solution Preview

You usually use a colorimeter where red light from the LED light source will pass through the solution in question and strike a photocell. A higher concentration of the solution absorbs more light (and transmits less) than a solution of lower concentration. The colorimeter monitors the light received by the photocell as either an absorbance or a percent transmittance value.

You usually prepare at least five solutions of a known concentration (standard solutions). Each is transferred to a small, rectangular cuvette that is placed into the colorimeter. The amount of light that penetrates the solution and strikes the photocell is used to compute the absorbance of each solution. When a graph of absorbance versus concentration is plotted for ...

Purchase this Solution

Free BrainMass Quizzes
Functional groups in Organic Chemistry

You will be tested on the names of functional groups in Organic Chemistry. It is very important to know the functional groups to understand Organic reactions.

Match Elements with their Symbols

Elements are provided: choose the matching one- or two-letter symbol for each element.

General Chemistry - Classification of Matter

This test will assess your knowledge on the classification of matter which includes elements, compounds and mixtures.

Organic Chemistry Naming: Alkanes

This is a quiz which is designed to assist students with learning the nomenclature used to identify organic compounds. This quiz focuses on the organic compounds called Alkanes.