Organic Chemistry (9th Edition)
9th Edition
ISBN: 9780321971371
Author: Leroy G. Wade, Jan W. Simek
Publisher: PEARSON
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Textbook Question
Chapter 4.4, Problem 4.5P
The following reaction has a value of ∆G° = −2.1kJ/mol(−0.50kcaI/mol).
CH3Br + H2S ⇄ CH3 SH + HBr
- a. Calculate Keq at room temperature (25 °C) for this reaction as written.
- b. Starting with a 1 M solution of CH3Br and H2S, calculate the final concentrations of all four species at equilibrium.
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The following acid-base reaction occurs spontaneously in the gas phase at 25.0°C: NH₃(g) + HCl(g) ⇌ NH₄Cl(s) Calculate the equilibrium constant for this reaction at 287.15 K.
NH3 (g) =-17
HCl (g)=-95
NH4Cl (S)=-203
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 7.85 atm of nitrosyl chloride (NOCI) and 5.15 atm of chlorine (C12) at 834. °C. Answer the following questions
about this system:
rise
Under these conditions, will the pressure of C₁₂ 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 C12 will tend to rise, can that be
changed to a tendency to fall by adding NO? Similarly, if you said the
pressure of C₁₂ will tend to fall, can that be changed to a tendency to rise
by adding 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.
yes
no
atm
☑
00.
18
Ar
Consider the following equilibrium:
2NO g +Cl2 g 2NOCl g ΔG0=−41.kJNow suppose a reaction vessel is filled with 0.258 atm of chlorine Cl2 and 8.51 atm of nitrosyl chloride NOCl at 508. °C. Answer the following questions about the system:
Under these conditions, will the pressure of Cl2 tend to: rise or fall?
Is it possible to reverse this tendency by adding NO? In other words, if you said the pressure of Cl2 will tend to rise, can that be changed to a tendency to fall by adding NO? Similarly, if you said the pressure of Cl2 will tend to fall, can that be changed to a tendency to rise by adding YES OR 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. = ? atm
Chapter 4 Solutions
Organic Chemistry (9th Edition)
Ch. 4.3A - Draw Lewis structures for the following free...Ch. 4.3B - a. Write the propagation steps leading to the...Ch. 4.3C - Prob. 4.3PCh. 4.3C - Prob. 4.4PCh. 4.4 - The following reaction has a value of G =...Ch. 4.4 - Under base-catalyzed conditions two molecules of...Ch. 4.5B - When ethene is mixed with hydrogen in the presence...Ch. 4.5B - For each reaction, estimate whether S for the...Ch. 4.7 - a. Propose a mechanism for the free radical...Ch. 4.7 - a. Using bond-dissociation enthalpies from...
Ch. 4.8 - The reaction of tert-butyl chloride with methanol...Ch. 4.8 - Under certain conditions, the bromination of...Ch. 4.8 - When a small piece of plat num is added to a...Ch. 4.10 - Prob. 4.14PCh. 4.10 - Prob. 4.15PCh. 4.12 - The bromination of methane proceeds through the...Ch. 4.12 - a. Using me BDEs in Table4-2 (page 167 ), compute...Ch. 4.13A - What would be the product ratio in the...Ch. 4.13A - Classify each hydrogen atom in the following...Ch. 4.13B - Use the bond-dissociation enthalpies in Tabte4-2...Ch. 4.13B - Prob. 4.21PCh. 4.13B - Prob. 4.22PCh. 4.14 - a. Compute the heats of reaction for abstraction...Ch. 4.14 - 2,3-Dimethylbutane reacts with bromine in the...Ch. 4.14 - Prob. 4.25PCh. 4.15 - Prob. 4.26PCh. 4.15 - Prob. 4.27PCh. 4.16A - Prob. 4.28PCh. 4.16A - Prob. 4.29PCh. 4.16B - Prob. 4.30PCh. 4.16C - Prob. 4.31PCh. 4.16C - Acetonitrile (CH3C N) is deprotonated by very...Ch. 4.16D - Prob. 4.33PCh. 4 - The following reaction is a common synthesis used...Ch. 4 - Consider the following reaction-energy diagram. a....Ch. 4 - Draw a reaction-energy diagram for a one-step...Ch. 4 - Draw a reaction-energy diagram for a two-step...Ch. 4 - Prob. 4.38SPCh. 4 - Treatment of tert-butyl alcohol with concentrated...Ch. 4 - Label each hydrogen atom in the following...Ch. 4 - Prob. 4.41SPCh. 4 - Prob. 4.42SPCh. 4 - Prob. 4.43SPCh. 4 - Prob. 4.44SPCh. 4 - Prob. 4.45SPCh. 4 - Prob. 4.46SPCh. 4 - For each compound, predict the major product of...Ch. 4 - When exactly 1 mole of methane is mixed with...Ch. 4 - Prob. 4.49SPCh. 4 - Prob. 4.50SPCh. 4 - Prob. 4.51SPCh. 4 - When dichloromethane is treated with strong NaOH,...Ch. 4 - Prob. 4.53SPCh. 4 - When a small amount of iodine is added to a...Ch. 4 - Prob. 4.55SPCh. 4 - When healthy, Earths stratosphere contains a low...Ch. 4 - Prob. 4.57SPCh. 4 - lodination of alkanes using iodine (I2) is usually...
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