Chemistry & Chemical Reactivity
10th Edition
ISBN: 9781337399074
Author: John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher: Cengage Learning
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Question
Chapter 20, Problem 1PS
Interpretation Introduction
Interpretation:
The atmospheric gas which is present in highest concentration in dry air should be determined from the given gases.
Concept introduction:
Earth’s Atmosphere: It is the layer of gases that surrounds the planet earth and is retained by Earth’s gravity.
Dry air is air that has low relative humidity and no water vapor.
Expert Solution & Answer
Answer to Problem 1PS
The gas present in highest concentration in dry air is Option (b)
Explanation of Solution
Reason for the correct answer:
In atmosphere there are different types of air in different concentration are present.
Concentration of air may be changed in accordance with the temperature variation in the air. In dry air methane
Reason for the incorrect options:
In dry air methane has the highest concentration therefore the other given options such as,
(a)
(c)
(d)
are incorrect.
Conclusion
The gas present in highest concentration in dry air is methane.
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Identifying the major species in weak acid or weak base equilibria
Your answer is incorrect.
• Row 2: Your answer is incorrect.
• Row 3: Your answer is incorrect.
• Row 6: Your answer is incorrect.
0/5
The preparations of two aqueous solutions are described in the table below. For each solution, write the chemical formulas of the major species present at
equilibrium. You can leave out water itself.
Write the chemical formulas of the species that will act as acids in the 'acids' row, the formulas of the species that will act as bases in the 'bases' row, and the
formulas of the species that will act as neither acids nor bases in the 'other' row.
You will find it useful to keep in mind that HF is a weak acid.
acids:
HF
0.1 mol of NaOH is added to
1.0 L of a 0.7M HF
solution.
bases:
0.13 mol of HCl is added to
1.0 L of a solution that is
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Exponent
other:
F
acids: HF
bases: F
other:
K
1
0,0,...
?
000
18
Ar
Using reaction free energy to predict equilibrium composition
Consider the following equilibrium:
2NOCI (g) 2NO (g) + Cl2 (g) AGº =41. kJ
Now suppose a reaction vessel is filled with 4.50 atm of nitrosyl chloride (NOCI) and 6.38 atm of chlorine (C12) at 212. °C. Answer the following questions
about this system:
?
rise
Under these conditions, will the pressure of NOCI tend to rise or fall?
x10
fall
Is it possible to reverse this tendency by adding NO?
In other words, if you said the pressure of NOCI will tend to rise, can that
be changed to a tendency to fall by adding NO? Similarly, if you said the
pressure of NOCI will tend to fall, can that be changed to a tendency to
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yes
no
If you said the tendency can be reversed in the second question, calculate
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0.035 atm
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G
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18
Ar
Highlight each glycosidic bond in the molecule below. Then answer the questions in the table under the drawing area.
HO-
HO-
-0
OH
OH
HO
NG
HO-
HO-
OH
OH
OH
OH
NG
OH
Chapter 20 Solutions
Chemistry & Chemical Reactivity
Ch. 20.7 - Prob. 1.1ACPCh. 20.7 - Prob. 1.2ACPCh. 20.7 - Prob. 1.3ACPCh. 20.7 - Prob. 1.4ACPCh. 20.7 - Prob. 1.5ACPCh. 20.7 - Assume that a sample of hard water contains 50....Ch. 20.7 - One way to remove the calcium carbonate residue in...Ch. 20 - Prob. 1PSCh. 20 - Prob. 2PSCh. 20 - In the discussion on the composition of air,...
Ch. 20 - Prob. 4PSCh. 20 - Prob. 5PSCh. 20 - Prob. 6PSCh. 20 - Prob. 7PSCh. 20 - Prob. 8PSCh. 20 - Prob. 11PSCh. 20 - Although there are a number of...Ch. 20 - Prob. 14PSCh. 20 - Prob. 15PSCh. 20 - Prob. 16PSCh. 20 - Which of the following is a renewable energy...Ch. 20 - Prob. 18PSCh. 20 - Prob. 19PSCh. 20 - Prob. 21PSCh. 20 - The enthalpy of combustion of isooctane (C8H18),...Ch. 20 - Energy consumption in the United States amounts to...Ch. 20 - Prob. 24PSCh. 20 - Prob. 25PSCh. 20 - Prob. 27PSCh. 20 - Prob. 30PSCh. 20 - In methane hydrate the methane molecule is trapped...Ch. 20 - Prob. 32PSCh. 20 - Prob. 33PSCh. 20 - Prob. 34PSCh. 20 - Prob. 35PSCh. 20 - Prob. 36PSCh. 20 - Prob. 37PSCh. 20 - Prob. 38PSCh. 20 - Dinitrogen monoxide, N2O (commonly called nitrous...Ch. 20 - Prob. 40PSCh. 20 - Prob. 41PSCh. 20 - Prob. 42PSCh. 20 - Prob. 43GQCh. 20 - Prob. 44GQCh. 20 - Prob. 45GQCh. 20 - Prob. 46GQCh. 20 - Prob. 47GQCh. 20 - Prob. 48GQCh. 20 - Prob. 49ILCh. 20 - Prob. 50ILCh. 20 - Define the terms renewable and nonrenewable as...Ch. 20 - Prob. 52SCQCh. 20 - Prob. 53SCQCh. 20 - Prob. 54SCQCh. 20 - Prob. 55SCQCh. 20 - What is the likelihood that hydrogen (H2) will...Ch. 20 - Prob. 57SCQCh. 20 - Which sulfur compounds are atmospheric pollutants?...
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