Written Problem. A solution containing 8.75 ppm KMnO4 (Molar mass of KMnO4 =158.03 g/mole) has a transmittance of 0.473 in a 1.00-cm cell at 520 nm. a) What is the absorbance of the solution? b) Calculate the molar absorptivity of KMnO4 pls type it out

Written Problem. A solution containing 8.75 ppm KMnO4 (Molar mass of KMnO4 =158.03 g/mole) has a transmittance of 0.473 in a 1.00-cm cell at 520 nm. a) What is the absorbance of the solution? b) Calculate the molar absorptivity of KMnO4 pls type it out

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter24: Introduction To Spectrochemical Methods

Section: Chapter Questions

Problem 24.17QAP

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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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Written Problem. A solution containing 8.75 ppm KMnO4 (Molar mass of KMnO4 =158.03 g/mole) has a transmittance of 0.473 in a 1.00-cm cell at 520 nm.

a) What is the absorbance of the solution?

b) Calculate the molar absorptivity of KMnO4

pls type it out

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