CHEM 1&2 Lab Manual & worksheets pg 205

CHEM 1&2 Lab Manual & worksheets pg 205 -...

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Experiment 20: Beer’s Law General Chemistry I and II Lab Manual Dakota State University page 205 of 232 Experimental background: Believe it or not, you already have an inherent understanding of Beer’s law. If I were to give you two samples of water and ask you which has more iron contamination, you’d choose the darker one as the most likely suspect. Also, if I were to put the iron contaminated water in a large fish tank and ask you which direction would look darker, you’d say it would be darker looking from the side because the path is longer through the water. This is all Beer’s law says; the solution is darker if the concentration (amount of substance per unit volume of the solution) is higher and/or if the path length is longer. So, you might ask, why, then, isn’t the law named after me? Well, that’s a great question, and there are two answers. First, it’s a lot of fun watching a Board of Regents member turn blue with anger whenever they think we are teaching something, anything , that might possibly involve an alcoholic beverage.
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