Chemistry in Context
8th Edition
ISBN: 9780073522975
Author: American Chemical Society
Publisher: McGraw-Hill Education
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Chapter 2, Problem 29Q
The EPA has used the slogan “Ozone: Good Up High, Bad Nearby” in some of its publications for the general public. Explain the message.
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Using reaction free energy to predict equilibrium composition
Consider the following equilibrium:
N2O4 (g) 2NO2 (g)
AG⁰ = 5.4 kJ
Now suppose a reaction vessel is filled with 1.68 atm of dinitrogen tetroxide (N204) at 148. °C. Answer the following questions about this system:
rise
Under these conditions, will the pressure of N2O4 tend to rise or fall?
x10
fall
Is it possible to reverse this tendency by adding NO2?
In other words, if you said the pressure of N2O4 will tend to rise, can that
be changed to a tendency to fall by adding NO2? Similarly, if you said the
pressure of N2O4 will tend to fall, can that be changed to a tendency to
rise by adding NO2?
If you said the tendency can be reversed in the second question, calculate
the minimum pressure of NO 2 needed to reverse it.
Round your answer to 2 significant digits.
yes
no
0.42 atm
☑
5
0/5
?
مله
Ar
Homework 13 (Ch17)
Question 4 of 4 (1 point) | Question Attempt: 2 of 2
✓ 1
✓ 2
= 3
4
Time Remaining: 4:25:54
Using the thermodynamic information in the ALEKS Data tab, calculate the standard reaction free energy of the following chemical reaction:
2CH3OH (g)+302 (g) → 2CO2 (g) + 4H₂O (g)
Round your answer to zero decimal places.
☐ kJ
x10
☐
Subm
Check
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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
1.0M in both HF and KF.
Exponent
other:
F
acids: HF
bases: F
other:
K
1
0,0,...
?
000
18
Ar
Chapter 2 Solutions
Chemistry in Context
Ch. 2.1 - Prob. 2.3CTCh. 2.6 - Prob. 2.15CTCh. 2.7 - Prob. 2.17CTCh. 2.7 - Prob. 2.19SCCh. 2.7 - The indoor tanning industry runs a public...Ch. 2.7 - Prob. 2.21CTCh. 2.8 - Prob. 2.22CTCh. 2.8 - Prob. 2.23YTCh. 2.11 - Prob. 2.27CTCh. 2.13 - Prob. 2.30CT
Ch. 2.13 - Prob. 2.32CTCh. 2 - How does ozone differ from oxygen in its chemical...Ch. 2 - Prob. 2QCh. 2 - Prob. 3QCh. 2 - Prob. 4QCh. 2 - Prob. 5QCh. 2 - Prob. 6QCh. 2 - a. What is a Dobson unit? b. Does a reading of 320...Ch. 2 - Using the periodic table as a guide, specify the...Ch. 2 - Consider this representation of a periodic table....Ch. 2 - Give the name and symbol for the element with this...Ch. 2 - Give the number of protons, neutrons, and...Ch. 2 - Give the symbol showing the atomic number and the...Ch. 2 - Prob. 13QCh. 2 - Assuming that the octet rule applies, draw the...Ch. 2 - Prob. 15QCh. 2 - Consider these two waves representing different...Ch. 2 - Prob. 17QCh. 2 - Prob. 18QCh. 2 - Arrange these types of radiation in order of...Ch. 2 - The microwaves in home microwave ovens have a...Ch. 2 - Ultraviolet radiation is categorized as UVA, UVB,...Ch. 2 - Prob. 22QCh. 2 - Prob. 23QCh. 2 - Prob. 24QCh. 2 - Prob. 25QCh. 2 - The following free radicals all play a role in...Ch. 2 - a. How were the original measurements of increases...Ch. 2 - Prob. 28QCh. 2 - The EPA has used the slogan Ozone: Good Up High,...Ch. 2 - Nobel Laureate F. Sherwood Rowland referred to the...Ch. 2 - Prob. 31QCh. 2 - Prob. 32QCh. 2 - Prob. 33QCh. 2 - Prob. 34QCh. 2 - Prob. 35QCh. 2 - Prob. 36QCh. 2 - The average length of an OO single bond is 132 pm....Ch. 2 - Prob. 38QCh. 2 - Prob. 39QCh. 2 - Prob. 40QCh. 2 - All the reports of the damage caused by UV...Ch. 2 - Prob. 42QCh. 2 - Prob. 43QCh. 2 - Prob. 44QCh. 2 - Development of the stratospheric ozone hole has...Ch. 2 - Prob. 46QCh. 2 - One mechanism that helps break down ozone in the...Ch. 2 - Polar stratospheric clouds (PSCs) play an...Ch. 2 - Prob. 49QCh. 2 - Prob. 50QCh. 2 - Resonance structures can be used to explain the...Ch. 2 - Prob. 52QCh. 2 - Prob. 53QCh. 2 - Many different types of ozone generators...Ch. 2 - The effect a chemical substance has on the ozone...Ch. 2 - Prob. 56Q
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- 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 rise by adding NO? yes no If you said the tendency can be reversed in the second question, calculate the minimum pressure of NO needed to reverse it. Round your answer to 2 significant digits. 0.035 atm ✓ G 00. 18 Ararrow_forwardHighlight 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 OHarrow_forward€ + Suppose the molecule in the drawing area below were reacted with H₂ over a platinum catalyst. Edit the molecule to show what would happen to it. That is, turn it into the product of the reaction. Also, write the name of the product molecule under the drawing area. Name: ☐ H C=0 X H- OH HO- H HO- -H CH₂OH ×arrow_forward
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