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 9, Problem 9.6QAP
Interpretation Introduction
Interpretation:
The reason for the 30% more absorption for a solution containing 50% ethanol than the solution containing no ethanol needs to be explained, if both the solution contains the same amount of nickel.
Concept introduction:
Spectral lines are lines which help identify atoms and molecules. These are a result of absorption or emission of light in a comparatively narrower frequency range compared to the frequencies nearby.
In a defined space, the amount of a substance gives its concentration. The capacity of a substance to absorb a specific
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Solve the problems using a step-by-step process (solutions).
1. Solutions of fluorene (diphenylmethane) in benzene can be analyzed by making use of its absorbance at 301 nm wavelength. If a solution of fluorene of unknown concentration in benzene exhibits an absorbance of 0.720 in a 1.00-cm cuvette cell. What is the concentration of fluorene? (Ans. c = 6.55 x10-5 M)
Explain how to obtain larger particles based on the relative supersaturation
Solve the problems using a step-by-step process (solutions).
1. Solutions of fluorene (diphenylmethane) in benzene can be analyzed by making use of its absorbance at 301 nm wavelength. If a solution of fluorene of unknown concentration in benzene exhibits an absorbance of 0.720 in a 1.00-cm cuvette cell. What is the concentration of fluorene? (Ans. c = 6.55 x10-5 M)
2. If, with a beam of monochromatic light, 65.0% of the incident light is absorbed in its passage through a column of a certain colored solution, what is the absorbance of the solution? (Ans. A = 0.456)
3. A 1.0x10-3 M solution of a dye X shows an absorbance of 0.20 at 450 nm wavelength and an absorbance of 0.05 at 620 nm wavelength. Calculate the extinction coefficient for each wavelength. (Ans. e450 = 200 ; e620 = 50)
Chapter 9 Solutions
Principles of Instrumental Analysis
Ch. 9 - Prob. 9.1QAPCh. 9 - Prob. 9.2QAPCh. 9 - Why is an electrothermal atomizer more sensitive...Ch. 9 - Prob. 9.4QAPCh. 9 - Prob. 9.5QAPCh. 9 - Prob. 9.6QAPCh. 9 - Prob. 9.7QAPCh. 9 - Prob. 9.8QAPCh. 9 - Prob. 9.9QAPCh. 9 - Prob. 9.10QAP
Ch. 9 - Prob. 9.11QAPCh. 9 - Prob. 9.12QAPCh. 9 - Prob. 9.13QAPCh. 9 - Prob. 9.14QAPCh. 9 - Prob. 9.15QAPCh. 9 - Prob. 9.16QAPCh. 9 - Prob. 9.17QAPCh. 9 - In the concentration range of 1 to 100 g/mL P,...Ch. 9 - Prob. 9.19QAPCh. 9 - Prob. 9.20QAPCh. 9 - Prob. 9.21QAPCh. 9 - The chromium in an aqueous sample was determined...Ch. 9 - Prob. 9.23QAP
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