Exp 8 Calculation of an Equilibrium Constant via Apsorption Spectroscopy

Exp 8 Calculation of an Equilibrium Constant via Apsorption Spectroscopy

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Calculation of an Equilibrium Constant via Absorption Spectroscopy Excel Template Chem1310 Laboratory Copyright (c) 2003-2007 Tatsuya Maehigashi Chem1310 Margin Name: Se Woong Chang Partner's Name: Alec Shull Section: C-3 Date of Experiment Performed: 2/25/2008 Date of Report Prepared: 2/29/2008 Calculation of an Equilibrium Constant via Absorption Spectroscopy Tabulated Data Useful Units ID 0 0 1 1.0 5.0 4.0 10.0 0 0.08 0.5 2 2.0 5.0 3.0 10.0 0 0.18 0.1 3 3.0 5.0 2.0 10.0 0 0.26 4 4.0 5.0 1.0 10.0 0 0.35 5 5.0 5.0 0.0 10.0 0 0.39 Tabulated Results 8080 Supporting Calculation Statistical Slope 8080 Intercept 0.01 0.98 Determining k in Beer's Law Fe 3+ (ml) SCN - (ml) HNO 3 (ml) Total (ml) [Fe(SCN) 2+ ] (M) Abs. 470 [Fe(NO 3 ) 3 ] Stock (M) [Fe(NO 3 ) 3 ] Diluted (M) [KSCN] Stock (M) [HNO 3 ] Stock (M) Molar Absorptivity, ε (M -1 cm -1 ) R 2 Your Plot Here (For determination of the molar absorptivity. Remember, A= bc ) *See P.87 Post Lab Assignment Instruction Supporting Calculations 1. [Fe(NO 3 ) 3
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Exp 8 Calculation of an Equilibrium Constant via Apsorption Spectroscopy

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