A calibration curve constructed from absorbance values of solutions containing a known concentration of permanganate ions has the following best-fit line: y = (3.62 × 103 L/mol) x where y is the absorbance of the solution at 525 nm and x is the concentration of MnO4– (aq) in mol/L. The pathlength of the cuvettes used in the experiment is exactly 1 cm. Using this information, what is the molar absorptivity of MnO4– (aq) at 525 nm?

A calibration curve constructed from absorbance values of solutions containing a known concentration of permanganate ions has the following best-fit line: y = (3.62 × 103 L/mol) x where y is the absorbance of the solution at 525 nm and x is the concentration of MnO4– (aq) in mol/L. The pathlength of the cuvettes used in the experiment is exactly 1 cm. Using this information, what is the molar absorptivity of MnO4– (aq) at 525 nm?

Chemistry & Chemical Reactivity

10th Edition

ISBN:9781337399074

Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel

Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel

Chapter4: Stoichiometry: Quantitative Information About Chemical Reactions

Section4.9: Spectrophotometry

Problem 4.14CYU

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