Organic Chemistry Plus Masteringchemistry With Pearson Etext, Global Edition
9th Edition
ISBN: 9781292151229
Author: Wade, LeRoy G.
Publisher: PEARSON
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Chapter 20.5, Problem 20.4P
Interpretation Introduction
Interpretation:
The use of acid-base extractions to purify the heptanoic acid is to be stated and the chart that shows the impurities at each stage is to be given.
Concept introduction:
Acid-base extraction is the technique that is used to separate the acidic and basic substance from the mixture on the basis of their chemical properties. This technique is used during the work up of a reaction after the synthesis of the compounds, so that the product becomes free from any type of impurities. The acidic or basic substances that are similar in chemical properties are impossible to separate through this method.
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Complete boxes in the flow chart. Draw the structure of the organic compound foundin each layer after adding 3M NaOH and extraction. Make sure to include any charges. Provide explanation on answers.
==
Vid4Q2
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☑
Provide IUPAC name of product in the reaction
below
A 3,4-dimethylcyclohexene
B 1,2-dimethylcyclohexane
C 1,2-dimethylcyclohexene
D 3,4-dimethylcyclohexane
H₂
Pd
5.
Use the MS data to answer the questions on the next page.
14.0
1.4
15.0
8.1
100-
MS-IW-5644
26.0
2.8
27.0
6.7
28.0
1.8
29.0
80
4.4
38.0
1.0
39.0
1.5
41.0
1.2
42.0
11.2
43.0
100.0
44.0
4.3
79.0
1.9
80.0
2.6
Relative Intensity
40
81.0
1.9
82.0
2.5
93.0
8.7
20-
95.0
8.2
121.0
2.0
123.0
2.0
136.0
11.8
0
138.0
11.5
20
40
8.
60
a.
Br
- 0
80
100
120
140
160
180
200
220
m/z
Identify the m/z of the base peak and molecular ion.
2
b.
Draw structures for each of the following fragments (include electrons and charges): 43.0, 93.0,
95.0, 136.0, and 138.0 m/z.
C.
Draw a reasonable a-fragmentation mechanism for the fragmentation of the molecular ion to
fragment 43.0 m/z. Be sure to include all electrons and formal charges.
6. Using the values provided in Appendix E of your lab manual, calculate the monoisotopic mass for the pyridinium
ion (CsH6N) and show your work.
Chapter 20 Solutions
Organic Chemistry Plus Masteringchemistry With Pearson Etext, Global Edition
Ch. 20.2C - Prob. 20.1PCh. 20.2C - Name the following carboxylic acids (when...Ch. 20.4B - Rank the compounds in each set in order of...Ch. 20.5 - Prob. 20.4PCh. 20.5 - Phenols are less acidic than carboxylic acids,...Ch. 20.5 - Prob. 20.6PCh. 20.7A - Prob. 20.7PCh. 20.7B - Prob. 20.8PCh. 20.7D - Draw all four resonance forms of the fragment at...Ch. 20.7D - a. Why do most long-chain fatty acids show a large...
Ch. 20.10 - Prob. 20.13PCh. 20.10 - A carboxylic acid has two oxygen atoms, each with...Ch. 20.10 - Prob. 20.15PCh. 20.10 - The mechanism of the Fischer esterification was...Ch. 20.10 - Prob. 20.17PCh. 20.12 - Show how to synthesize the following compounds,...Ch. 20.13 - Show how you would synthesize the following...Ch. 20.14 - Prob. 20.20PCh. 20.14 - Prob. 20.21PCh. 20.15 - Propose a mechanism for the reaction of benzoic...Ch. 20.15 - Prob. 20.23PCh. 20.15 - Prob. 20.24PCh. 20 - Prob. 20.25SPCh. 20 - Give both IUPAC names and common names for the...Ch. 20 - Draw the structures of the following compounds. a....Ch. 20 - Prob. 20.28SPCh. 20 - Arrange each group of compounds in order of...Ch. 20 - Predict the products (if any) of the following...Ch. 20 - Rank the following isomers in order of increasing...Ch. 20 - Prob. 20.32SPCh. 20 - What do the following pKa values tell you about...Ch. 20 - Given the structure of ascorbic acid (vitamin C):...Ch. 20 - Prob. 20.35SPCh. 20 - Show how you would accomplish the following...Ch. 20 - Predict the products and propose mechanisms for...Ch. 20 - Prob. 20.38SPCh. 20 - Prob. 20.39SPCh. 20 - Prob. 20.40SPCh. 20 - Prob. 20.44SPCh. 20 - Prob. 20.45SPCh. 20 - Predict the major form of each compound when it is...
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