lab_exp3 - Experiment 3: Solutions and Colloids in the...

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Experiment 3: Solutions and Colloids in the Purification of Water Chemistry 1046L- Purpose: The purpose of this lab is to introduce the process of water purification, pH levels, and various other techniques. These techniques include how to create serial dilutions, how to perform spectroscopy readings. Also the ways to properly obtain and label a sample were demonstrated. Procedure: There were no changes to the procedure. Dillon, Stephanie. “Evaporation, Sublimation and Intermolecular Forces.” CHM1046L Online Manual . Fall 2011. 21 September 2011. <http://www.chem.fsu.edu/chemlab/chm1046lmanual/forces/index.html > Data: Solution Concentration (ppm) of Absorbance (AU) Stock 11.53 .361 1 st Dilution 10.00 .299 2 nd Dilution 8.00 .233 3 rd Dilution 6.00 .149 4 th Dilution 4.00 .073 Purification Concentration (ppm) Concentration (M) Absorbance (AU) pH
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3.42 1.36 .052 6 After 2.68 0.63 .024 8 Observations: Before purification water was cloudy, grayish in color, and contained dirt. After purification the water was clearer but still cloudy and dark. As purification
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lab_exp3 - Experiment 3: Solutions and Colloids in the...

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