number 20, is this correct? The molar absorptivity for aqueous solutions of phenol at 211 nm is 6.17 x 10³ L cm¹ mol¹¹. What is the phenol concentration if the %transmittance is equal to 75% when measured using 1.00-cm cells?Select one:2.0 x 105 M9.8 x 10-5 M1.0 x 105 M4.9 x 10.5 M

Given, Molar absorptivity for aqueous solution of phenol = ε = 6.17 x 103 L.cm-1.mol-1 Percentage…

The molar absorptivity for aqueous solutions of phenol at 211 nm is 6.17 x 10³ L cm³¹ mol¹. What is the phenol concentration if the % transmittance is equal to 75% when measured using 1.00-cm cells? Select one: 2.0 x 105 M O 9.8 x 10-5 M O 1.0 x 105 M 4.9 x 10,5 M

The molar absorptivity for aqueous solutions of phenol at 211 nm is 6.17 x 10³ L cm³¹ mol¹. What is the phenol concentration if the % transmittance is equal to 75% when measured using 1.00-cm cells? Select one: 2.0 x 105 M O 9.8 x 10-5 M O 1.0 x 105 M 4.9 x 10,5 M

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.

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number 20, is this correct?

The molar absorptivity for aqueous solutions of phenol at 211 nm is 6.17 x 10³ L cm¹ mol¹¹. What is the phenol concentration if the %
transmittance is equal to 75% when measured using 1.00-cm cells?
Select one:
2.0 x 105 M
9.8 x 10-5 M
1.0 x 105 M
4.9 x 10.5 M

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