The molar absorption coefficient of a solute at 440 nm is 423 dm3 mol−1 cm−1. When light of that wavelength passes through a 6.50 mm cell containing a solution of the solute, 48.3 per cent of the light was absorbed. What is the molar concentration of the solute?

The molar absorption coefficient of a solute at 440 nm is 423 dm3 mol−1 cm−1. When light of that wavelength passes through a 6.50 mm cell containing a solution of the solute, 48.3 per cent of the light was absorbed. What is the molar concentration of the solute?

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

The molar absorption coefficient of a solute at 440 nm is 423 dm³ mol⁻¹ cm⁻¹. When light of that wavelength passes through a 6.50 mm cell containing a solution of the solute, 48.3 per cent of the light was absorbed. What is the molar concentration of the solute?

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