The ff. statements are true, EXCEPT: 1. If the wavelength is doubled, the energy is halved. II. If the wavenumber is doubled, the energy is halved. III. According to Beer's Law, absorbance will double if the concentration of the solution is halved. IV. According to Beer's Law, absorbance will be halved if the concentration of the solution is halved. O l and II C l and IV C Il and Il O l and IV

The ff. statements are true, EXCEPT: 1. If the wavelength is doubled, the energy is halved. II. If the wavenumber is doubled, the energy is halved. III. According to Beer's Law, absorbance will double if the concentration of the solution is halved. IV. According to Beer's Law, absorbance will be halved if the concentration of the solution is halved. O l and II C l and IV C Il and Il O l and IV

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 5P

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Similar questions

9. The LabQuest SpectroVis spectrophotometer is used to measure the intensity of a light source passing through a sample cell. If 41% of the light is absorbed by a solution, 59% of the light is transmitted. What is the value for absorbance (A)? 0.89 0.528 0.23 0.387
A solution has a %T value of 48.2% at 600 nm. What is the absorbance of this solution at this wavelength?
3. What is the purpose of using blank before measuring the absorbance of a substance?
A solution was made and its absorbance was measured to be A. If the path length of the light passing through the solution is then doubled, what is the new absorbance in terms of the original absorbance, A? O A O AV2 O 2A O A/2 O None of the above.
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Which is TRUE for spectroscopy of a mixture? A. The absorbance for a mixture at a particular wavelength is the sum of the absorbances for the components that absorb at the particular wavelength. B. Spectrophotometers can differentiate between mixture components that absorb at the same wavelength. C. Each component in a mixture has the same molar absorptivity at the same wavelength. D. The concentration for each component in a mixture is easily calculated by least squares for guesses of each component when the individual spectra are well resolved.
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What procedures are utilized in optical analysis to determine a solution's concentration based on colorimeter absorbance measurements?
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23. How do you set up and solve absorbance problems like this?