(d) The Beer-Lambert law states that the absorbance (A) of light by a solution in a cuvette is given by. A = ID==ecL In=-= where lo is the incident light intensity, / is the transmitted light intensity, e is the molar absorptivity, c is the concentration of the solution, and Lis the path length of the cuvette. (1) Light with a wavelength of 800 nm is passed through a cuvette containing a solution of Coumarin dye. After passing through the cuvette, the light intensity was reduced to 10% of its initial value. What is the absorbance of the solution of Coumarin dye? (1) The concentration of the Coumarin dye is 0.004 mol dm3, and the cuvette has a path length of 1 cm. What is the molar absorptivity of Coumarin dye at 800 nm, in units of m² mot¹?

(d) The Beer-Lambert law states that the absorbance (A) of light by a solution in a cuvette is given by. A = ID==ecL In=-= where lo is the incident light intensity, / is the transmitted light intensity, e is the molar absorptivity, c is the concentration of the solution, and Lis the path length of the cuvette. (1) Light with a wavelength of 800 nm is passed through a cuvette containing a solution of Coumarin dye. After passing through the cuvette, the light intensity was reduced to 10% of its initial value. What is the absorbance of the solution of Coumarin dye? (1) The concentration of the Coumarin dye is 0.004 mol dm3, and the cuvette has a path length of 1 cm. What is the molar absorptivity of Coumarin dye at 800 nm, in units of m² mot¹?

Principles of Instrumental Analysis

7th Edition

ISBN:9781305577213

Author:Douglas A. Skoog, F. James Holler, Stanley R. Crouch

Publisher:Douglas A. Skoog, F. James Holler, Stanley R. Crouch

Chapter16: An Introduction To Infrared Spectrometry

Section: Chapter Questions

Problem 16.4QAP

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(d) The Beer-Lambert law states that the absorbance (A) of light by a solution in a cuvette is given by: A = ln == ECL In == where lo is the incident light intensity, is the transmitted light intensity, e is the molar absorptivity, c is the concentration of the solution, and Lis the path length of the cuvette. (1) Light with a wavelength of 800 nm is passed through a cuvette containing a solution of Coumarin dye. After passing through the cuvette, the light intensity was reduced to 10% of its initial value. What is the absorbance of the solution of Coumarin dye? (1) The concentration of the Coumarin dye is 0.004 mol dm, and the cuvette has a path length of 1 cm. What is the molar absorptivity of Coumarin dye at 800 nm, in units of m² mor¹? (T) The molar absorptivity of Coumarin dye at 400 nm is three times larger than at 800 nm. How would the absorbance of the solution change, when measured with 400 nm light rather than 800 nm light?
(d) The Beer-Lambert law states that the absorbance (A) of light by a solution in a cuvette is given by: 10 A = In == ECL where lo is the incident light intensity, is the transmitted light intensity, e is the molar absorptivity, c is the concentration of the solution, and L is the path length of the cuvette. (1) Light with a wavelength of 800 nm is passed through a cuvette containing a solution of Coumarin dye. After passing through the cuvette, the light intensity was reduced to 10% of its initial value. What is the absorbance of the solution of Coumarin dye? (ii) The concentration of the Coumarin dye is 0.004 mol dm3, and the cuvette has a path length of 1 cm. What is the molar absorptivity of Coumarin dye at 800 nm, in units of m² mot¹? (IT) The molar absorptivity of Coumarin dye at 400 nm is three times larger than at 800 nm. How would the absorbance of the solution change, when measured with 400 nm light rather than 800 nm light?
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