Organic Chemistry (6th Edition)
6th Edition
ISBN: 9781260119107
Author: Janice Gorzynski Smith
Publisher: McGraw Hill Education
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Chapter 20.10, Problem 20P
Fenofibrate is a cholesterol-lowering medication that is converted to fenofibric acid, the active drug, by hydrolysis during
fenofibrate
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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:
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bases:
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other: ☐
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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.
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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
Chapter 20 Solutions
Organic Chemistry (6th Edition)
Ch. 20.1 - Prob. 1PCh. 20.2 - Draw the three possible resonance structures for...Ch. 20.2 - Prob. 3PCh. 20.3 - Give an IUPAC or common name for each compound. a....Ch. 20.3 - Problem 22.5 Draw the structure corresponding to...Ch. 20.4 - Problem 22.6 Explain why the boiling point of is...Ch. 20.7 - Prob. 11PCh. 20.7 - Prob. 12PCh. 20.8 - Prob. 13PCh. 20.9 - Problem 22.16 Draw the products of each reaction.
...
Ch. 20.9 - Prob. 17PCh. 20.9 - Problem 22.18 Draw a stepwise mechanism for the...Ch. 20.9 - Prob. 19PCh. 20.10 - Problem 22.20 Fenofibrate is a...Ch. 20.10 - Problem 22.21 What product is formed when the...Ch. 20 - Prob. 33PCh. 20 - 22.40 Give the IUPAC or common name for each...Ch. 20 - 22.41 Give the structure corresponding to each...Ch. 20 - Prob. 36PCh. 20 - 22.43 Explain why is a stronger acid and a weaker...Ch. 20 - (a) Propose an explanation for the difference in...Ch. 20 - Draw the product formed when phenylacetic acid is...Ch. 20 - Prob. 42PCh. 20 - Prob. 43PCh. 20 - Prob. 44PCh. 20 - Prob. 45PCh. 20 - Prob. 46PCh. 20 - Prob. 47PCh. 20 - Prob. 48PCh. 20 - 22.64 What carboxylic acid and alcohol are needed...Ch. 20 - Problem 22.65 Devise a synthesis of each compound...Ch. 20 - 22.70 What polyester or poly amide can be prepared...Ch. 20 - 22.71 What two monomers are needed to prepare each...
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