Compound Z absorbs light of wavelength 320 nm. A 1.0 x 10-3 mol dm-3 solution of a compound Z gives an absorbance reading of o.15 when placed in a solution cell of path length 1 cm. What is the value of the molar extinction (absorption) coefficient of Z?

Compound Z absorbs light of wavelength 320 nm. A 1.0 x 10-3 mol dm-3 solution of a compound Z gives an absorbance reading of o.15 when placed in a solution cell of path length 1 cm. What is the value of the molar extinction (absorption) coefficient of Z?

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

Chapter14: Applications Of Ultraviolet-visible Molecular Absorption Spectrometry

Section: Chapter Questions

Problem 14.9QAP

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Concept explainers

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.

Question

Compound Z absorbs light of wavelength 320 nm. A 1.0 x
10-3 mol dm-3 solution of a compound Z gives an
absorbance reading of o.15 when placed in a solution cell of
path length 1 cm. What is the value of the molar extinction
(absorption) coefficient of Z?

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