(a) What is the molar absorptivity of compound Z at 295 nm and 348nm, given the absorption spectrum shown in Fig.22-14 (which was obtained using a UV-Vis spectrophotometer and a 1mM solution of compound Z in a sample cell with a path length of 1 cm)? (b) Now you have decided to make quantitative measurement of the level of compound Z in different solutions. Based on the above spectrum, which wavelength will you use for your measurements? Give two reasons why this is the optimum wavelength.
(a) What is the molar absorptivity of compound Z at 295 nm and 348nm, given the absorption spectrum shown in Fig.22-14 (which was obtained using a UV-Vis spectrophotometer and a 1mM solution of compound Z in a sample cell with a path length of 1 cm)? (b) Now you have decided to make quantitative measurement of the level of compound Z in different solutions. Based on the above spectrum, which wavelength will you use for your measurements? Give two reasons why this is the optimum wavelength.
Chemistry
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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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- (a) What is the molar absorptivity of compound Z at 295 nm and 348nm, given the absorption spectrum shown in Fig.22-14 (which was obtained using a UV-Vis spectrophotometer and a 1mM solution of compound Z in a sample cell with a path length of 1 cm)?
(b) Now you have decided to make quantitative measurement of the level of compound Z in different solutions. Based on the above spectrum, which wavelength will you use for your measurements? Give two reasons why this is the optimum wavelength.
Transcribed Image Text:1.0
.9
.8-
.7-
.3
.2
.1-
280
300
320
340
360
380
400
Wavelength (nm)
22-14
figure
Absorption spectrum of compound Z, to be
used in conjunction with problems 4(a) and
4(b).
Absorbance (A)
4.
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