The Beer-Lambert law you'll be using to determine the concentration of an unknown is A = ebcwhere A is the absorbance measured on the spectrometer, e (epsilon) is the molar absorptivity inM cm1, b is the path length of the cell (the diameter of the cuvette which is filled with solution),and c is the concentration of the solution in M.If you have a sample which has an absorbance of 1.17, a molar absorptivity of 1 Mcm1, and acuvette that is 1.15 cm wide, what is the concentration of the sample in M?Give your answer to 3 decimal places (e.g.: 0.123)

The given data contains, Absorbance=1.17path length=1.15 cmMolar absorptivity=1 M-1.cm-1

If you have a sample which has an absorbance of 1.17, a molar absorptivity of 1 Mcm1, and a cuvette that is 1.15 cm wide, what is the concentration of the sample in M? Give your answer to 3 decimal places (e.g.: 0.123)

If you have a sample which has an absorbance of 1.17, a molar absorptivity of 1 Mcm1, and a cuvette that is 1.15 cm wide, what is the concentration of the sample in M? Give your answer to 3 decimal places (e.g.: 0.123)

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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Spectroanalytical Methods

Spectroanalytical methods measure the wavelength and intensity of radiations that are either emitted or absorbed by a molecular or atomic species. These methods are useful for evaluating the electronic or atomic arrangement of the molecules of a given analyte.

Question

The Beer-Lambert law you'll be using to determine the concentration of an unknown is A = ebc
where A is the absorbance measured on the spectrometer, e (epsilon) is the molar absorptivity in
M cm1, b is the path length of the cell (the diameter of the cuvette which is filled with solution),
and c is the concentration of the solution in M.
If you have a sample which has an absorbance of 1.17, a molar absorptivity of 1 Mcm1, and a
cuvette that is 1.15 cm wide, what is the concentration of the sample in M?
Give your answer to 3 decimal places (e.g.: 0.123)

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