Chemistry In Focus
7th Edition
ISBN: 9781337399692
Author: Tro, Nivaldo J.
Publisher: Cengage Learning,
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Chapter 13, Problem 4E
Interpretation Introduction
Interpretation:
Litmus paper and the litmus paper test are to be explained.
Concept introduction:
Litmus paper is one of the simplest and oldest methods to determine the acidity or basicity of a solution. This paper is treated with the natural dye that originates from certain species of lichens. A litmus test is done by pouring the sample solution on the litmus paper and observing the color change of litmus paper. The color change is significant, therefore easily detectable.
A litmus test is quite reliable, safe and easy. Hence, it is widely used in school and various laboratories.
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==
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
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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
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80
100
120
140
160
180
200
220
m/z
Identify the m/z of the base peak and molecular ion.
2
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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
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Chapter 13 Solutions
Chemistry In Focus
Ch. 13 - Which property is not generally associated with...Ch. 13 - Prob. 2SCCh. 13 - The ideal pH of a swimming pool is 7.2. You...Ch. 13 - Prob. 13.1YTCh. 13 - Identify the Brnsted-Lowry acid and base in the...Ch. 13 - Prob. 1ECh. 13 - What are the properties of acids?Ch. 13 - Prob. 3ECh. 13 - Prob. 4ECh. 13 - List five common laboratory acids and their uses.
Ch. 13 - Why are bases not commonly found in foods?Ch. 13 - List four common laboratory bases and their uses.Ch. 13 - What are the Arrhenius definitions of acids and...Ch. 13 - What are the Brnsted-Lowry definitions of acids...Ch. 13 - What is the difference between a strong acid and a...Ch. 13 - Prob. 11ECh. 13 - What pH range is considered acidic? Basic?...Ch. 13 - What acid is responsible for the sour taste of...Ch. 13 - What is pickling? What acid is responsible for the...Ch. 13 - Prob. 15ECh. 13 - Prob. 16ECh. 13 - List several common acids and where they might be...Ch. 13 - Prob. 18ECh. 13 - Prob. 19ECh. 13 - What causes acid indigestion? List some common...Ch. 13 - Prob. 21ECh. 13 - Explain how a leavening agent works.Ch. 13 - Prob. 23ECh. 13 - Prob. 24ECh. 13 - Prob. 25ECh. 13 - Prob. 26ECh. 13 - Prob. 27ECh. 13 - Prob. 28ECh. 13 - Write a chemical equation to show the...Ch. 13 - Write a chemical equation to show the...Ch. 13 - Identify the Brnsted-Lowry acid and base in each...Ch. 13 - Identify the Brnsted-Lowry acid and base in each...Ch. 13 - Write a chemical equation using Lewis structures...Ch. 13 - Write a chemical equation using Lewis structures...Ch. 13 - A chemist makes two solutions. One is a 0.01-MHCl...Ch. 13 - A chemist makes a 0.001-MNaOH solution and a...Ch. 13 - Give the pH that corresponds to each solution and...Ch. 13 - Give the pH that corresponds to each solution and...Ch. 13 - What is the [H3O+] in a solution with a pH of 4?Ch. 13 - What is the [H3O+] in a solution with a pH of 11?Ch. 13 - Write chemical reactions to show how each antacid...Ch. 13 - Write chemical reactions to show how each antacid...Ch. 13 - Suppose that the stomach contains...Ch. 13 - Suppose that 250.0 mL of a basic solution is 0.100...Ch. 13 - Prob. 45ECh. 13 - Write a chemical reaction to show how NO2 forms...Ch. 13 - Prob. 47ECh. 13 - Prob. 50ECh. 13 - Determine from the following molecular view of a...Ch. 13 - Determine from the following molecular view of a...
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