Principles of Instrumental Analysis
7th Edition
ISBN: 9781305577213
Author: Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher: Cengage Learning
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Chapter 7, Problem 7.3QAP
The Wien displacement law states that the wavelength maximum in micrometers for blackbody radiation isgiven by the relationship
where T is the temperature in kelvins. Calculate the wavelength maximum for a blackbody that has been heated to (a) 4500 K, (b) 250 K, and (c) 1250 K.
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Give detailed Solution with explanation needed with structures. don't give Ai generated solution. avoid handwritten Solution
The acid-base indicator HX undergoes the following reaction in a dilute aqueous solution:
HX (color 1) H+ + X- (color 2).
The following absorbance data were obtained for a 0.00035 M solution of HX in 0.1 M NaOH
and 0.1 M HCI. Measurements were made at wavelengths of 450 nm and 620 nm using a 1.0
cm glass cuvette.
450
620
A(460 nm) A(630 nm)
0.1 M NaOH
0.1 M HCI
0.065
0.435
0.895
0.150
In the 0.1M NaOH solution, the indicator will be almost 100% in the X- form, while in 0.1M HCI,
the indicator will be nearly 100% protonated (HX). Calculate the acid dissociation constant for
the indicator if a pH=5 buffer solution containing a very small amount of indicator exhibits an
absorbance of 0.567 at 450 nm and 0.395 at 620 nm (measured in a 1 cm glass cuvette).
Show work...give the name of the given compound. Don't give Ai generated solution
Chapter 7 Solutions
Principles of Instrumental Analysis
Ch. 7 - Prob. 7.1QAPCh. 7 - Prob. 7.2QAPCh. 7 - The Wien displacement law states that the...Ch. 7 - Prob. 7.4QAPCh. 7 - Prob. 7.5QAPCh. 7 - Describe the differences and similarities between...Ch. 7 - Prob. 7.7QAPCh. 7 - Prob. 7.8QAPCh. 7 - Prob. 7.9QAPCh. 7 - Prob. 7.10QAP
Ch. 7 - Why is glass better than fused silica as a prism...Ch. 7 - Prob. 7.12QAPCh. 7 - Prob. 7.13QAPCh. 7 - Prob. 7.14QAPCh. 7 - Prob. 7.15QAPCh. 7 - Prob. 7.16QAPCh. 7 - Prob. 7.17QAPCh. 7 - Prob. 7.18QAPCh. 7 - Prob. 7.19QAPCh. 7 - Prob. 7.20QAPCh. 7 - Prob. 7.21QAPCh. 7 - Prob. 7.22QAPCh. 7 - Prob. 7.23QAPCh. 7 - Prob. 7.24QAP
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