Lab 2 Report - Eric Edsinger Separation of the Components...

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Eric Edsinger Separation of the Components of a Mixture (Experiment # 2) Under the Supervision of Tony Johnson Experiment Concluded on: April 2, 2008 Lab Report Due on: April 9, 2008
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Purpose The purpose of this lab is to determine the mass percent of different components of a mixture by separating them by dissolving them in different solvents. Procedure Please refer to General Chemistry Laboratory Experiments Volume 1 Spring 2008, by Judith Casey and Robert Tatz, pages 15-16, for the proper procedure for experiment one. The lab manual was followed throughout this entire experiment. This lab used approximately 2 mL of dichloromethane, 2 mL of distilled water and about 0.6g of an unknown sample. Data See attached Report form for the data. Sample Calculations See attached paper Report Questions 1. a.) A reason for recovering less than 100% could have been a possible loss of sample when transferring it from the balance to the test tube. Also the solid could have not been completely separated by the centrifuge. Another possibly could be that the
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