Chemistry Atoms First2e
2nd Edition
ISBN: 9781947172647
Author: OpenStax
Publisher: OpenStax College
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Textbook Question
Chapter 3, Problem 2E
An FM radio station found at 103.1 on the FM dial broadcasts at a frequency of
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Using reaction free energy to predict equilibrium composition
Consider the following equilibrium:
2NO2 (g) = N2O4(g)
AGº = -5.4 kJ
Now suppose a reaction vessel is filled with 4.53 atm of dinitrogen tetroxide (N2O4) at 279. °C. Answer the following questions about this system:
Under these conditions, will the pressure of N2O4 tend to rise or 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
'2'
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.
00
rise
☐ x10
fall
yes
no
☐ atm
G
Ar
1
Why do we analyse salt?
Curved arrows are used to illustrate the flow of electrons. Using
the provided starting and product structures, draw the curved
electron-pushing arrows for the following reaction or
mechanistic step(s).
Be sure to account for all bond-breaking and bond-making
steps.
H
H
CH3OH, H+
H
Select to Add Arrows
H°
0:0
'H
+
Q
HH
■ Select to Add Arrows
CH3OH,
H*
H.
H
CH3OH, H+
HH
■ Select to Add Arrows i
Please select a drawing or reagent from the question area
Chapter 3 Solutions
Chemistry Atoms First2e
Ch. 3 - The light produced by a red neon sign is due to...Ch. 3 - An FM radio station found at 103.1 on the FM dial...Ch. 3 - FM-95, an FM radio station, broadcasts at a...Ch. 3 - A bright violet line occurs at 435.8 nm in the...Ch. 3 - Light with a wavelength of 614.5 nm looks orange....Ch. 3 - Heated lithium atoms emit photons of light with an...Ch. 3 - A photon of light produced by a surgical laser has...Ch. 3 - When rubidium ions are heated to a high...Ch. 3 - The emission spectrum of cesium contains two lines...Ch. 3 - Photons of infrared radiation are responsible for...
Ch. 3 - One of the radiographic devices used in a...Ch. 3 - The eyes of certain reptiles pass a single visual...Ch. 3 - RGB color television and computer displays use...Ch. 3 - Answer the following questions about a Blu-ray...Ch. 3 - What is the threshold frequency for sodium metal...Ch. 3 - Why is the electron in a Bohr hydrogen atom bound...Ch. 3 - What does it mean to say that the energy of the...Ch. 3 - Using the Bohr model, determine the energy, in...Ch. 3 - The electron volt (eV) is a convenient unit of...Ch. 3 - Using the Bohr model, determine the lowest...Ch. 3 - Using the Bohr model, determine the lowest...Ch. 3 - Using the Bohr model, determine the energy of an...Ch. 3 - Using the Bohr model, determine the energy of an...Ch. 3 - How far from the nucleus in angstroms (1 angstrom...Ch. 3 - What is the radius, in angstroms, of the orbital...Ch. 3 - Using the Bohr model, determine the energy in...Ch. 3 - Using the Bohr model, determine the energy in...Ch. 3 - Consider a large number of hydrogen atoms with...Ch. 3 - How are the Bohr model and the Rutherford model of...Ch. 3 - The spectra of hydrogen and of calcium are shown...Ch. 3 - How are the Bohr model and the quantum mechanical...Ch. 3 - What are the allowed values for each of the four...Ch. 3 - Describe the properties of an electron associated...Ch. 3 - Answer the following questions: (a) Without using...Ch. 3 - Identify the subshell in which electrons with the...Ch. 3 - Which of the subshells described in the previous...Ch. 3 - Identify the subshell in which electrons with the...Ch. 3 - Which of the subshells described in the previous...Ch. 3 - Sketch the boundary surface of a dx2y2 and a py...Ch. 3 - Sketch the px and dxz orbitals. Be sure to show...Ch. 3 - Consider the orbitals shown here in outline. (a)...Ch. 3 - State the Heisenberg uncertainty principle....Ch. 3 - How many electrons could be held in the second...Ch. 3 - Which of the following equations describe...Ch. 3 - Write a set of quantum numbers for each of the...Ch. 3 - Read the labels of several commercial products and...Ch. 3 - Read the labels of several commercial products and...Ch. 3 - Using complete subshell notation (not...Ch. 3 - Using complete subshell notation ( 1s22s22p6, and...Ch. 3 - Is 1s22s22p6 the symbol for a macroscopic property...Ch. 3 - What additional information do we need to answer...Ch. 3 - Draw the orbital diagram for the valence shell of...Ch. 3 - Use an orbital diagram to describe the electron...Ch. 3 - Using complete subshell notation ( 1s22s22p6, and...Ch. 3 - Which atom has the electron configuration...Ch. 3 - Which atom has the electron configuration...Ch. 3 - Which ion with a +1 charge has the electron...Ch. 3 - Which of the following atoms contains only three...Ch. 3 - Which of the following has two unpaired electrons?...Ch. 3 - Which atom would be expected to have a half-filled...Ch. 3 - Which atom would be expected to have a half-filled...Ch. 3 - In one area of Australia, the cattle did not...Ch. 3 - Thallium was used as a poison in the Agatha...Ch. 3 - Write the electron configurations for the...Ch. 3 - Cobalt60 and iodine131 are radioactive isotopes...Ch. 3 - Write a set of quantum numbers for each of the...Ch. 3 - Based on their positions in the periodic table,...Ch. 3 - Based on their positions in the periodic table,...Ch. 3 - Based on their positions in the periodic table,...Ch. 3 - Based on their positions in the periodic table,...Ch. 3 - Based on their positions in the periodic table,...Ch. 3 - Based on their positions in the periodic table,...Ch. 3 - Atoms of which group in the periodic table have a...Ch. 3 - Atoms of which group in the periodic table have a...Ch. 3 - Based on their positions in the periodic table,...Ch. 3 - Based on their positions in the periodic table,...Ch. 3 - Based on their positions in the periodic table,...Ch. 3 - List the following ions in order of increasing...Ch. 3 - Which atom and/or ion is (are) isoelectronic with...Ch. 3 - Which of the following atoms and ions is (are)...Ch. 3 - Compare both the numbers of protons and electrons...Ch. 3 - Of the five elements Al, Cl, I, Na, Rb, which has...Ch. 3 - Of the five elements Sn, Si, Sb, O, Te, which has...Ch. 3 - The ionic radii of the ions S2, Cl, and K+ are...Ch. 3 - Which main group atom would be expected to have...Ch. 3 - Explain why Al is a member of group 13 rather than...Ch. 3 - Using the periodic table, classify each of the...Ch. 3 - Using the periodic table, classify each of the...Ch. 3 - Using the periodic table, identify the lightest...Ch. 3 - Using the periodic table, identify the heaviest...Ch. 3 - Use the periodic table to give the name and symbol...Ch. 3 - Use the periodic table to give the name and symbol...Ch. 3 - Write a symbol for each of the following neutral...Ch. 3 - Write a symbol for each of the following neutral...Ch. 3 - Using the periodic table, predict whether the...Ch. 3 - Using the periodic table, predict whether the...Ch. 3 - For each of the following compounds, state whether...Ch. 3 - For each of the following compounds, state whether...Ch. 3 - For each of the following pairs of ions, write the...Ch. 3 - For each of the following pairs of ions, write the...
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