Absorbance56Part A: Determination of a Calibration CurveStnd:[Fe(SCN)2+]Absorbance1.000000'000 0 00.4032.060000'00.0001060.5133.0.0001270.5770.000189996'00.0002041.037Calibration Curvey 5146x - 0.0315R2 = 0.99350.2000.0000500.0001000.0001500.0002000.000250-0.200to 00000[Fe(SCN)2+]Absorbance Data Needed to Fill Row 3, Part 2ExperimentOptical Absorbance[Fe(SCN)2+]0.2871.0.537661.0031.217Original[SCN-[Fe(SCN)2+] (Final)[0.00033Original [Fe3+]0.001650.00006 139.7624040.001650.000113 134.40556599000'00.001650.0001683 138.23262366000'00.001650.001320.0002173 137.5457230.001650.001650.000255 131.036343 Name:Date:Section:Data Report Sheet: Spectrophotometric Determination of an EquilibriumConstant.Part A: Determination of a Calibration Curve:Stnd.1Std. 2Stnd. 3Stnd 4Stnd. 5Stnd. 6(CH)[Fe(SCN)*]Column AAbsorbanceColumn EEquation of Calibration Line:Correlation Coefficient:Slope (bɛ):Part B: Determination of KExpt. 1Expt. 2Expt. 3Expt. 4Expt. 5(Fe"linitial(Table 1)[SCNJinitial(Table 1)[Fe(SCN)**]eqi.TịnbəColumn F[Fe"lequil.([Fe"Imital -[Fe(SCN)**I«qull.)[SCNleguil[SCN'],(ISCN']initial "[Fe(SCN)*"lequil.KAverage K:

A method to determine the concentration of the unknown solution is called a calibration/standard…

Absorbance 1.200 1.000 0.800 0.600 0.400 0.200 0.000 Stnd: 1 -0.200 22256 0.000000 0.000050 Original [Fe3+] 0.00165 0.00165 0.00165 [Fe(SCN)2+] 0.00165 0.00165 0.000000 0.000090 0.000106 0.000127 0.000189 0.000204 Calibration Curve y=5146x -0.0315 R² = 0.9935 0.000100 Absorbance Data Needed to Fill Row 3, Part 2 Experiment 1 2 3 4 [Fe(SCN)2+] 5 Original [SCN- ] Absorbance 0.000150 0.00033 0.00066 0.00099 0.00132 0.00165 0.000 0.403 0.513 0.577 0.966 1.037 0.000200 Optical Absorbance [Fe(SCN)2+] 0.287 0.537 0.799 1.003 1.217 [Fe(SCN)2+] (Final) 0.000250 K 0.00006 139.762404 0.000113 134.405565 0.0001683 138.232623 0.0002173 137.545723 0.000255 131.036343

Absorbance 1.200 1.000 0.800 0.600 0.400 0.200 0.000 Stnd: 1 -0.200 22256 0.000000 0.000050 Original [Fe3+] 0.00165 0.00165 0.00165 [Fe(SCN)2+] 0.00165 0.00165 0.000000 0.000090 0.000106 0.000127 0.000189 0.000204 Calibration Curve y=5146x -0.0315 R² = 0.9935 0.000100 Absorbance Data Needed to Fill Row 3, Part 2 Experiment 1 2 3 4 [Fe(SCN)2+] 5 Original [SCN- ] Absorbance 0.000150 0.00033 0.00066 0.00099 0.00132 0.00165 0.000 0.403 0.513 0.577 0.966 1.037 0.000200 Optical Absorbance [Fe(SCN)2+] 0.287 0.537 0.799 1.003 1.217 [Fe(SCN)2+] (Final) 0.000250 K 0.00006 139.762404 0.000113 134.405565 0.0001683 138.232623 0.0002173 137.545723 0.000255 131.036343

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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