) Calculate absorbance of above solution? iii) If the concentration is 0.0802 M, what is the molar absorptivity of this solution at given wave length? iv) If the molar absorptivity is 10000L/ (mol.cm), what is the concentration?

) Calculate absorbance of above solution? iii) If the concentration is 0.0802 M, what is the molar absorptivity of this solution at given wave length? iv) If the molar absorptivity is 10000L/ (mol.cm), what is the concentration?

Appl Of Ms Excel In Analytical Chemistry

2nd Edition

ISBN:9781285686691

Author:Crouch

Publisher:Crouch

Chapter12: Spectrochemical Methods

Section: Chapter Questions

Problem 1P

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Concept explainers

UV Visible Spectroscopy

Spectroscopy refers to the absorption or emission of light or other radiations by matter. When a substance or chemical absorbs light or radiation, they reach an excited state followed by de-excitation or emission of the light or radiation forming distinct spectra. UV-visible spectroscopy or ultraviolet-visible refers to the absorption and emission in the ultraviolet and visible regions of the electromagnetic spectrum.

Question

i) The transmittance of as solution measured at 590nm in a 1.5cm cuvette was 76.2%.

ii) Calculate absorbance of above solution?

iii) If the concentration is 0.0802 M, what is the molar absorptivity of this solution at given wave length?

iv) If the molar absorptivity is 10000L/ (mol.cm), what is the concentration?

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