Calculate the path length in centimetreswhich would give an absorbance of 0.134 ofa colored dye with a molar absorptivity of0.759 L mol-1 cm-1 at a wavelength of 645nm if the concentration of the dye is6.82x10-2 M. Report your answer to 3significant figures.

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e path length

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

Chapter6: An Introduction To Spectrometric Methods

Section: Chapter Questions

Problem 6.16QAP

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Concept explainers

Matter and Measurement

In the universe, there is matter, energy, and void space. The universe contains energy and void space. The definition of matter can be considered as something which possesses mass and consumes space. Chemistry is that branch of science which deals with the study of matter. Under chemistry, nature, composition, and the changes occurring to matter are discussed.

Question

Calculate the path length in centimetres
which would give an absorbance of 0.134 of
a colored dye with a molar absorptivity of
0.759 L mol-1 cm-1 at a wavelength of 645
nm if the concentration of the dye is
6.82x10-2 M. Report your answer to 3
significant figures.

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