Answered: An unknown chemical has an absorbance…

An unknown chemical has an absorbance of 0.265 in a 1.0cm cuvette at a concentration of 0.703 M. What is the chemical's absorptivity constant in M cm1? Report your answer to three decimals.

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

Chapter13: An Introduction To Ultraviolet-visible Molecular Absorption Spectrometry

Section: Chapter Questions

Problem 13.24QAP

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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.

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An unknown chemical has an absorbance of 0.265 in a 1.0cm cuvette at a concentration of 0.703 M.
What is the chemical's absorptivity constant in M cm? Report your answer to three decimals.

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