Introductory Chemistry: An Active Learning Approach
6th Edition
ISBN: 9781305079250
Author: Mark S. Cracolice, Ed Peters
Publisher: Cengage Learning
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Chapter 15, Problem 24E
Interpretation Introduction
Interpretation:
Among
Concept introduction:
The viscosity is defined as the measure of a fluid's resistance to flow. It denotes the internal friction of a moving fluid. A fluid with high viscosity resists motion due to its high molecular interaction. The substances with low intermolecular interaction have lower viscosity.
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This graph shows how the vapor pressure of three liquids varies with temperature:
900
800
700
600
500
400
300
200
octane
- isobutyl alcohol
ethylbenzene
100
03
100
110
120
130
140
temperature, °C
Use the graph to answer the following questions:
Which liquid is the most volatile?
most volatile:
choose one
Which is the least volatile?
least volatile:
choose one
octane:
°C
What is the normal boiling point of each liquid?
Note: your answer must be within 1°C of the exact
answer to be graded correct.
isobutyl alcohol:
ethylbenzene:
Suppose a beaker of isobutyl alcohol is put inside a
sealed tank containing isobutyl alcohol gas at 103.
degree C and 900. torr. After ten minutes, will there
be more liquid in the beaker, less liquid, or the same
more
less
amount?
the same
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This graph shows how the vapor pressure of three liquids varies with temperature:
900
800
700
600
500
400
300
200
octane
- pyridine
orthoxylene
100
0
100
110
120
130
140
temperature, °C
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Which liquid is the most volatile?
most volatile:
choose one
Which is the least volatile?
least volatile:
choose one
°C
octane:
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answer to be graded correct.
pyridine:
orthoxylene:
more
Suppose a beaker of pyridine is put inside a sealed
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Aspirin has a higher molar mass compared to salicylic acid, however aspirin melts at a lower temperature than salicylic acid. Provide a brief explanation for this
observation.
Table 1
Compound:
Formula:
Salicylic Acid
C;H6O3
Aspirin
C9H3O4
Molar Mass:
138.12
Melting point:
Ka
158-160°C
1.08 x 10³
180.15
140-142°C
2.72 x 10$
pKa
Solubility (g/100ML)
2.99
4.57
0.18
0.25
Chapter 15 Solutions
Introductory Chemistry: An Active Learning Approach
Ch. 15 - Prob. 1ECh. 15 - Prob. 2ECh. 15 - Prob. 3ECh. 15 - Prob. 4ECh. 15 - Prob. 5ECh. 15 - Prob. 6ECh. 15 - Prob. 7ECh. 15 - Prob. 8ECh. 15 - Prob. 9ECh. 15 - Prob. 10E
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- Which of the following compounds has the highest boiling point? NH₂ Brarrow_forwardThis graph shows how the vapor pressure of three liquids varies with temperature: 900 800 700 600 500 400 300 pyrrole ethylbenzene piperidine 200 100 100 110 120 130 140 temperature, °C Use the graph to answer the following questions: Which liquid is the most volatile? most volatile: choose one Which is the least volatile? least volatile: choose one pyrrole: O°c What is the normal boiling point of each liquid? Note: your answer must be within 1°C of the exact answer to be graded correct. ethylbenzene: piperidine: Suppose a beaker of ethylbenzene is put inside a sealed tank containing ethylbenzene gas at 112. degree C and 237. torr. After ten minutes, will there be more liquid in the beaker, less liquid, or the same more less amount? the same vapor pressure, torrarrow_forwardWhich of the following compounds has the highest vapor pressure? ОНarrow_forward
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