Organic Chemistry-Package(Custom)
4th Edition
ISBN: 9781259141089
Author: SMITH
Publisher: MCG
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Chapter 31, Problem 31.4P
Draw the mechanism for the radical
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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: ☐
1.8 mol of HCl is added to
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,...
?
000
18
Ar
B
1
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
atm
00.
18
Ar
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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 31 Solutions
Organic Chemistry-Package(Custom)
Ch. 31 - Prob. 31.1PCh. 31 - Prob. 31.2PCh. 31 - Prob. 31.3PCh. 31 - Draw the mechanism for the radical polymerization...Ch. 31 - Prob. 31.5PCh. 31 - Prob. 31.6PCh. 31 - Prob. 31.7PCh. 31 - Prob. 31.8PCh. 31 - Prob. 31.9PCh. 31 - Prob. 31.10P
Ch. 31 - Prob. 31.11PCh. 31 - Problem 30.12
What polymer is formed by anionic...Ch. 31 - Prob. 31.13PCh. 31 - Prob. 31.14PCh. 31 - Problem 30.15
What polyamide is formed from each...Ch. 31 - Prob. 31.16PCh. 31 - Prob. 31.17PCh. 31 - Prob. 31.18PCh. 31 - Prob. 31.19PCh. 31 - Prob. 31.20PCh. 31 - Prob. 31.21PCh. 31 - Prob. 31.22PCh. 31 - Prob. 31.23PCh. 31 - Prob. 31.24PCh. 31 - Prob. 31.25PCh. 31 - Prob. 31.26PCh. 31 - 30.26 Draw the structure of the polymer formed by...Ch. 31 - Prob. 31.28PCh. 31 - Prob. 31.29PCh. 31 - Prob. 31.30PCh. 31 - Prob. 31.31PCh. 31 - Prob. 31.32PCh. 31 - Prob. 31.33PCh. 31 - Prob. 31.34PCh. 31 - Prob. 31.35PCh. 31 - Prob. 31.36PCh. 31 - Prob. 31.37PCh. 31 - Prob. 31.38PCh. 31 - Prob. 31.39PCh. 31 - 30.39 Draw a stepwise mechanism for the...Ch. 31 - 30.40 Cationic polymerization of 3-phenylpropene ...Ch. 31 - Prob. 31.42PCh. 31 - Prob. 31.43PCh. 31 - 30.43 Although styrene undergoes both cationic and...Ch. 31 - 30.44 Rank the following compounds in order of...Ch. 31 - Prob. 31.46PCh. 31 - Prob. 31.47PCh. 31 - 30.47 Draw a stepwise mechanism for the following...Ch. 31 - 30.48 Draw a stepwise mechanism for the reaction...Ch. 31 - Prob. 31.50PCh. 31 - Prob. 31.51PCh. 31 - Prob. 31.52PCh. 31 - 30.52 (a) Explain why poly (vinyl alcohol) cannot...Ch. 31 - Prob. 31.54PCh. 31 - 30.53 Devise a synthesis of terephthalic acid and...Ch. 31 - Prob. 31.56PCh. 31 - Prob. 31.57PCh. 31 - 30.56 Compound A is a novel poly (ester amide)...Ch. 31 - Researchers at Rutgers University have developed...Ch. 31 - 30.58 Melmac, a thermosetting polymer formed from...Ch. 31 - 30.59 Although chain branching in radical...Ch. 31 - Prob. 31.62P
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