The following data were obtained at various wavelengths for a 3.6 ´ 10–4 M solution of permanganate in a cell with a path length of 1.00 cm. (Table is in attached) (a) Plot an absorption spectrum for permanganate using these data. (b) From the absorption spectrum obtained, determine the wavelength that permanganate has the strongest absorption. (c) Estimate the molar absorptivity (with proper unit) of permanganate at the absorption maximum. (d) A sample solution containing permanganate gives a %T of 40.0 at the absorption maximum. What is the concentration of permanganate in the sample?
The following data were obtained at various wavelengths for a 3.6 ´ 10–4 M solution of permanganate in a cell with a path length of 1.00 cm. (Table is in attached) (a) Plot an absorption spectrum for permanganate using these data. (b) From the absorption spectrum obtained, determine the wavelength that permanganate has the strongest absorption. (c) Estimate the molar absorptivity (with proper unit) of permanganate at the absorption maximum. (d) A sample solution containing permanganate gives a %T of 40.0 at the absorption maximum. What is the concentration of permanganate in the sample?
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
Chapter19: Nuclear Magnetic Resonance Spectroscopy
Section: Chapter Questions
Problem 19.14QAP: What is a rotating frame of reference?
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3. The following data were obtained at various wavelengths for a 3.6 ´ 10–4 M solution of permanganate in a cell with a path length of 1.00 cm.
(Table is in attached)
|
(a) |
Plot an absorption spectrum for permanganate using these data. |
|
(b) |
From the absorption spectrum obtained, determine the wavelength that permanganate has the strongest absorption. |
|
(c) |
Estimate the molar absorptivity (with proper unit) of permanganate at the absorption maximum. |
|
(d) |
A sample solution containing permanganate gives a %T of 40.0 at the absorption maximum. What is the concentration of permanganate in the sample? |
Transcribed Image Text:Wavelength/nm
%T
400
89
425
92
450
83
475
60
500
27
525
15
550
29
575
50
600
82
625
86
650
88
675
93
700
96
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