Chemistry Principles And Practice
3rd Edition
ISBN: 9781305295803
Author: David Reger; Scott Ball; Daniel Goode
Publisher: Cengage Learning
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Textbook Question
Chapter 14, Problem 14.23QE
Kc at 137 °C is 4.42 for
NO(g) +
Calculate Kc at 137 °C for
2NOBr(g) ⇌ 2NO(g) + Br2(g)
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Identifying the major species in weak acid or weak base equilibria
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 NH3 is a weak base.
acids: ☐
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1.0 L of a 1.0M NH3
bases: ☐
solution.
other: ☐
0.18 mol of HNO3 is added
to 1.0 L of a solution that is
1.4M in both NH3 and
NH₁Br.
acids:
bases: ☐
other: ☐
0,0,...
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18
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Using reaction free energy to predict equilibrium composition
Consider the following equilibrium:
2NH3 (g) = N2 (g) +3H₂
—N2 (g) AGº = 34. kJ
Now suppose a reaction vessel is filled with 4.19 atm of ammonia (NH3) and 9.94 atm of nitrogen (N2) at 378. °C. Answer the following questions about this
system:
rise
Under these conditions, will the pressure of NH 3 tend to rise or fall?
☐ x10
fall
Х
Is it possible to reverse this tendency by adding H₂?
In other words, if you said the pressure of NH 3 will tend to rise, can that
be changed to a tendency to fall by adding H₂? Similarly, if you said the
pressure of NH3 will tend to fall, can that be changed to a tendency to
rise by adding H₂?
If you said the tendency can be reversed in the second question, calculate
the minimum pressure of H₂ needed to reverse it.
Round your answer to 2 significant digits.
yes
no
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18
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Identifying the major species in weak acid or weak base equilibria
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.
2.2 mol of NaOH is added to
1.0 L of a 1.4M HF
solution.
acids:
П
bases:
Х
other: ☐
ப
acids:
0.51 mol of KOH is added to
1.0 L of a solution that is
bases:
1.3M in both HF and NaF.
other: ☐
00.
18
Ar
Chapter 14 Solutions
Chemistry Principles And Practice
Ch. 14 - Prob. 14.1QECh. 14 - Describe a nonchemical system that is in...Ch. 14 - Describe a nonchemical system that is not in...Ch. 14 - Prob. 14.4QECh. 14 - Prob. 14.5QECh. 14 - Prob. 14.6QECh. 14 - Prob. 14.7QECh. 14 - Prob. 14.8QECh. 14 - Prob. 14.9QECh. 14 - Prob. 14.10QE
Ch. 14 - Explain why terms for pure liquids and solids do...Ch. 14 - Temperature influences solubility. Does...Ch. 14 - Prob. 14.13QECh. 14 - Prob. 14.14QECh. 14 - Prob. 14.15QECh. 14 - Prob. 14.16QECh. 14 - Prob. 14.17QECh. 14 - Prob. 14.18QECh. 14 - At 2000 K, experiments show that the equilibrium...Ch. 14 - At 500 K, the equilibrium constant is 155 for...Ch. 14 - At 77 C, Kp is 1.7 104 for the formation of...Ch. 14 - Consider the following equilibria involving SO2(g)...Ch. 14 - Kc at 137 C is 4.42 for NO(g) + 12 Br2(g) NOBr(g)...Ch. 14 - Prob. 14.24QECh. 14 - Prob. 14.25QECh. 14 - Prob. 14.26QECh. 14 - Prob. 14.27QECh. 14 - Prob. 14.28QECh. 14 - Prob. 14.29QECh. 14 - Prob. 14.30QECh. 14 - Prob. 14.31QECh. 14 - Prob. 14.32QECh. 14 - Prob. 14.33QECh. 14 - Prob. 14.34QECh. 14 - Prob. 14.35QECh. 14 - Consider the system...Ch. 14 - Prob. 14.37QECh. 14 - Prob. 14.38QECh. 14 - Prob. 14.39QECh. 14 - Prob. 14.40QECh. 14 - Prob. 14.41QECh. 14 - Prob. 14.42QECh. 14 - Prob. 14.43QECh. 14 - Prob. 14.44QECh. 14 - Prob. 14.45QECh. 14 - Prob. 14.46QECh. 14 - Prob. 14.47QECh. 14 - Prob. 14.48QECh. 14 - Prob. 14.49QECh. 14 - Prob. 14.50QECh. 14 - Prob. 14.51QECh. 14 - Consider 0.200 mol phosphorus pentachloride sealed...Ch. 14 - Prob. 14.53QECh. 14 - Prob. 14.54QECh. 14 - Prob. 14.55QECh. 14 - Prob. 14.56QECh. 14 - Prob. 14.57QECh. 14 - Prob. 14.58QECh. 14 - Prob. 14.59QECh. 14 - Prob. 14.60QECh. 14 - Prob. 14.61QECh. 14 - Write the expression for the equilibrium constant...Ch. 14 - Prob. 14.63QECh. 14 - Prob. 14.64QECh. 14 - Write the expression for the solubility product...Ch. 14 - Prob. 14.66QECh. 14 - Prob. 14.67QECh. 14 - The solubility of silver iodate, AgIO3, is 1.8 ...Ch. 14 - Prob. 14.69QECh. 14 - Prob. 14.70QECh. 14 - Prob. 14.71QECh. 14 - Prob. 14.72QECh. 14 - Even though barium is toxic, a suspension of...Ch. 14 - Lead poisoning has been a hazard for centuries....Ch. 14 - Calculate the solubility of barium sulfate (Ksp =...Ch. 14 - Calculate the solubility of copper(II) iodate,...Ch. 14 - Calculate the solubility of lead fluoride, PbF2...Ch. 14 - Calculate the solubility of zinc carbonate, ZnCO3...Ch. 14 - Prob. 14.79QECh. 14 - Prob. 14.80QECh. 14 - Use the solubility product constant from Appendix...Ch. 14 - Prob. 14.82QECh. 14 - Some barium chloride is added to a solution that...Ch. 14 - Prob. 14.84QECh. 14 - Prob. 14.85QECh. 14 - Prob. 14.86QECh. 14 - Prob. 14.87QECh. 14 - Prob. 14.88QECh. 14 - Prob. 14.89QECh. 14 - Prob. 14.90QECh. 14 - Prob. 14.91QECh. 14 - At 3000 K, carbon dioxide dissociates CO2(g) ...Ch. 14 - Prob. 14.94QECh. 14 - Nitrogen, hydrogen, and ammonia are in equilibrium...Ch. 14 - The concentration of barium in a saturated...Ch. 14 - According to the Resource Conservation and...Ch. 14 - Prob. 14.98QE
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