A UV-Vis spectrophotometer has an incident radiation of 0.5250 W which then becomes 0.3397 W after passing through a 9.94x10-5 M KMnO4 solution when measured in a 1.25-cm cell at a wavelength of 525 nm. Calculate (a) the absorbance of this solution and (b) the molar absorptivity of KMnO₄.
A UV-Vis spectrophotometer has an incident radiation of 0.5250 W which then becomes 0.3397 W after passing through a 9.94x10-5 M KMnO4 solution when measured in a 1.25-cm cell at a wavelength of 525 nm. Calculate (a) the absorbance of this solution and (b) the molar absorptivity of KMnO₄.
Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Chapter1: Introduction
Section: Chapter Questions
Problem 1.1P
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Question
A UV-Vis spectrophotometer has an incident
radiation of 0.5250 W which then becomes
0.3397 W after passing through a 9.94x10-5 M
KMnO4 solution when measured in a 1.25-cm
cell at a wavelength of 525 nm. Calculate (a)
the absorbance of this solution and (b) the
molar absorptivity of KMnO₄.
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