To make a calibration curve, the Molarity in the x-axis is plotted against the absorbance in the y-axis. See graph below. Absorbance 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 Calibration Curve y=4341.5x+0.0873 R²=0.9904 0 0 0.00002 0.00004 0.00006 0.00008 0.0001 0.00012 0.00014 0.00016 0.00018 Molarity (M)
To make a calibration curve, the Molarity in the x-axis is plotted against the absorbance in the y-axis. See graph below. Absorbance 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 Calibration Curve y=4341.5x+0.0873 R²=0.9904 0 0 0.00002 0.00004 0.00006 0.00008 0.0001 0.00012 0.00014 0.00016 0.00018 Molarity (M)
Principles of Modern Chemistry
8th Edition
ISBN:9781305079113
Author:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler
Publisher:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler
Chapter20: Molecular Spectroscopy And Photochemistry
Section: Chapter Questions
Problem 6P
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Question
a) The absorbance measured of 0.350, mixed with a concentration of unknown. solution of equilibrium. What is the concentration of the solution?
b) Calculate the Kf of the equilibrium reaction if the initial concentration of ions was [Fe^3+] = 1.00 x 10^-3 M and [SCN^-] = 4.00 x 10^-4 M using the equilibrium concentration corresponding with the absorbance of 0.350
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