lab_exp6 - Experiment 6: Photometric Determination on an...

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Experiment 6: Photometric Determination on an Equilibrium Constant Chemistry 1046L-
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The purpose of this lab is to understand and use the technique of absorption spectroscopy to create a calibration curve. This lab reiterates the formula of Beer’s Law and stoichiometric calculations. This lab also reinforces the proper use of a Mohr pipet along with basic measuring techniques. 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: Soln Initial Vol (mL) Initial vol KSCN (mL) Total Vol (mL) [KSCN] Abs (Au) A 5 1 6 0.341 B 5 2 7 0.688 C 5 3 8 1.392 D 5 4 9 1.767 E 5 5 10 2.040 Soln Initial Vol (mL) Initial Vol KSCN (mL) Total Vol (mL) Initial (M) Initial [SCN-] (M) Abs (AU) (M) Eq (M) Eq [SCN-] (M) K F 3 7 10 1.015 281.9 G 4 6 10 0.797 165.6 H 5 5 10 0.724 14.5 I 6 4 10 0.610 127.1
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This note was uploaded on 03/16/2012 for the course CHEMISTRY 1046L taught by Professor Chaolv during the Fall '11 term at FSU.

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lab_exp6 - Experiment 6: Photometric Determination on an...

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