Principles of Instrumental Analysis
7th Edition
ISBN: 9781337468039
Author: Skoog
Publisher: Cengage
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Chapter 8, Problem 8.5QAP
Interpretation Introduction
Interpretation:
The reason for greater emission intensity of sodium lines at 589 and 589.6 nm for a solution containing KCl in comparison to the solution in which KCl is absent should be determined.
Concept introduction:
Spectral lines are lines which help in identifying the atoms and molecules. These are a result of absorption or emission of light in a comparatively narrower frequency range compared to the frequencies nearby.
Sodium spectrum has bright doublet at 588.995 and 589.592 nm. This is said to be sodium D-lines. The intensity of the line at 589 nanometers is twice that of the intensity of the line at 589.6 nanometers.
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Protecting Groups and Carbonyls
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III + VI
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HS
H+
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I
II
IV
CI + P(Ph)3
V
༼
Hint: no strong base added
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VII
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aqeuous solution
H,SO,
༽༽༤༽༽
X
MeOH
Hint: enhances selectivity for reaction at the S
X
☑
Chapter 8 Solutions
Principles of Instrumental Analysis
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