Potassium permanganate, KMnO4 is a deep purple solid and solutions of KMnO4 can be analyzed using UV/VIS Spectroscopy. A set of standards is run and the best fit line for the calibration curve is found to be A-0.105(%w/v) + 0.042 A 16.68mL aliquot of an unknown sample containing KMnO4 was diluted to a final volume of 200.05mL. Analysis of the sample at a wavelength of 590nm in a 1.00cm cuvette was found to have a %T - 49.2. Calculate the concentration of KMnO4 (% w/v) in the unknown sample. Give your answer to 2 places after the decimal.

Potassium permanganate, KMnO4 is a deep purple solid and solutions of KMnO4 can be analyzed using UV/VIS Spectroscopy. A set of standards is run and the best fit line for the calibration curve is found to be A-0.105(%w/v) + 0.042 A 16.68mL aliquot of an unknown sample containing KMnO4 was diluted to a final volume of 200.05mL. Analysis of the sample at a wavelength of 590nm in a 1.00cm cuvette was found to have a %T - 49.2. Calculate the concentration of KMnO4 (% w/v) in the unknown sample. Give your answer to 2 places after the decimal.

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Question

Q.17.

Potassium permanganate, KMnO4 is a deep purple solid and solutions of KMnO4 can be analyzed using
UV/VIS Spectroscopy. A set of standards is run and the best fit line for the calibration curve is found to be
A=0.105(% w/v) + 0.042
A 16.68mL aliquot of an unknown sample containing KMnO4 was diluted to a final volume of 200.05mL.
Analysis of the sample at a wavelength of 590nm in a 1.00cm cuvette was found to have a %T = 49.2.
Calculate the concentration of KMnO4 (% w/v) in the unknown sample. Give your answer to 2 places after the
decimal.

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