# lab8 - Determination of an Equilibirum Constant Excel...

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Determination of an Equilibirum Constant Excel Template Chem1310 Laboratory Copyright (c) 2003 Tatsuya Maehigashi Post Lab - Exp. 8 Determining an Equilibrium Constant 30 pts Useful Units Tabulated Data 0 ID Total (ml) 0.00010 0.5 1 1.0 5.0 4.0 10.0 0.000010 0.091 0.10 2 2.0 5.0 3.0 10.0 0.000020 0.174 3 3.0 5.0 2.0 10.0 0.000030 0.225 4 4.0 5.0 1.0 10.0 0.000050 0.321 5 5.0 5.0 0.0 10.0 0.000060 0.372 Tabulated Results 5400.00 Intercept 5.3E-02 M1V1=M2V2 [.0025]*.004L=x*.1L x=[.0025]*.004L/.1L x=[.0001] M1V1=M2V2 [.0001]*.001L=x*.01L [.0001]*.001L/.01L=x x=[1e-5] Part A. Determining ε b from Beer's Law Plot [Fe(NO 3 ) 3 ] Stock (M) Fe 3+ (ml) SCN - (ml) HNO 3 (ml) [Fe(SCN) 2+ ] (M) Abs. 470 [Fe(NO 3 ) 3 ] Diluted (M) [KSCN] Stock (M) [HNO 3 ] Stock (M) Slope = ε b (l/mole) Supporting Calculation (5pts for each) [Fe 3+ ] working [Fe 3+ ] test tube 1 5pts for total fill 5 pts Plot - 10pts Watch out for followings. - Title, X/Y axis labeling (with units where

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lab8 - Determination of an Equilibirum Constant Excel...

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