Organic Chemistry
7th Edition
ISBN: 9780321803221
Author: Paula Y. Bruice
Publisher: Prentice Hall
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Chapter 17.6, Problem 15P
In the mechanism for cyanohydrin formation, why is HCN the acid that protonates the alkoxide ion instead of HCl?
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Using reaction free energy to predict equilibrium composition
Consider the following equilibrium:
2NO(g) +Cl₂ (g) = 2NOC1 (g) AGº = -41. kJ
Now suppose a reaction vessel is filled with 8.90 atm of chlorine (C12) and 5.71 atm of nitrosyl chloride (NOC1) at 1075. °C. Answer the following questions
about this system:
rise
Under these conditions, will the pressure of NOCI 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 NOCI will tend to rise, can that
be changed to a tendency to fall by adding NO? Similarly, if you said the
pressure of NOCI will tend to fall, can that be changed to a tendency to
rise by adding NO?
yes
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
☑
18
Ar
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 HCN is a weak acid.
acids:
0.29 mol of NaOH is added
to 1.0 L of a 1.2M HCN
solution.
bases:
☑
other:
0.09 mol of HCl is added to
acids:
1.0 L of a solution that is
bases:
0.3M in both HCN and
KCN.
other:
0,0,...
?
00.
18
Ar
日
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.
acids:
0.2 mol of KOH is added to
1.0 L of a 0.5 M HF
solution.
bases:
Х
other: ☐
acids:
0.10 mol of HI is added to
1.0 L of a solution that is
1.4M in both HF and NaF.
bases:
other: ☐
0,0,...
ด
?
18
Ar
Chapter 17 Solutions
Organic Chemistry
Ch. 17.1 - Prob. 1PCh. 17.1 - Give two names for each of the following:Ch. 17.1 - Name the following:Ch. 17.2 - Prob. 4PCh. 17.4 - What products are formed when the following...Ch. 17.4 - We saw on the previous page that...Ch. 17.4 - a. How many stereoisomers are obtained from the...Ch. 17.4 - Prob. 9PCh. 17.4 - Write the mechanism for the reaction of acetyl...Ch. 17.4 - Prob. 11P
Ch. 17.4 - Show how the following compounds can be...Ch. 17.5 - Prob. 13PCh. 17.5 - Prob. 14PCh. 17.6 - In the mechanism for cyanohydrin formation, why is...Ch. 17.6 - Prob. 16PCh. 17.6 - Prob. 17PCh. 17.6 - Show two ways to convert an alkyl halide into a...Ch. 17.7 - Prob. 20PCh. 17.7 - Prob. 21PCh. 17.7 - Prob. 22PCh. 17.7 - Prob. 23PCh. 17.8 - Prob. 24PCh. 17.9 - What reducing agents should be used to obtain the...Ch. 17.9 - Prob. 26PCh. 17.9 - Prob. 27PCh. 17.10 - Prob. 28PCh. 17.10 - Prob. 29PCh. 17.10 - Prob. 30PCh. 17.10 - The pKa of protonated acetone is about 7.5. and...Ch. 17.10 - Prob. 32PCh. 17.10 - Prob. 33PCh. 17.10 - Prob. 34PCh. 17.10 - Excess ammonia must be used when a primary amine...Ch. 17.10 - The compounds commonly known as amino acids are...Ch. 17.11 - Hydration of an aldehyde is also catalyzed by...Ch. 17.11 - Which ketone forms the most hydrate in an aqueous...Ch. 17.11 - When trichloroacetaldehyde is dissolved in water,...Ch. 17.12 - Which of the following are a. hermiacetals? b....Ch. 17.12 - Prob. 41PCh. 17.12 - Explain why an acetal can be isolated but most...Ch. 17.13 - Prob. 43PCh. 17.13 - Prob. 44PCh. 17.13 - What products would be formed from the proceedings...Ch. 17.13 - a. In a six-step synthesis, what is the yield of...Ch. 17.13 - Show how each of the following compounds could be...Ch. 17.15 - Prob. 48PCh. 17.17 - Prob. 50PCh. 17.18 - Prob. 51PCh. 17.19 - Prob. 52PCh. 17 - Draw the structure for each of the following: a....Ch. 17 - Prob. 54PCh. 17 - Prob. 55PCh. 17 - a. Show the reagents required to form the primary...Ch. 17 - Prob. 57PCh. 17 - Using cyclohexanone as the starting material,...Ch. 17 - Prob. 59PCh. 17 - 60. Show how each of the following compounds could...Ch. 17 - Fill in the boxes:Ch. 17 - Prob. 62PCh. 17 - Identify A through O:Ch. 17 - Prob. 64PCh. 17 - Prob. 65PCh. 17 - Prob. 66PCh. 17 - How many signals would the product of the...Ch. 17 - Prob. 68PCh. 17 - Prob. 69PCh. 17 - Prob. 70PCh. 17 - Prob. 71PCh. 17 - Prob. 72PCh. 17 - Prob. 73PCh. 17 - Prob. 74PCh. 17 - Prob. 75PCh. 17 - Prob. 76PCh. 17 - Prob. 77PCh. 17 - A compound gives the following IR spectrum. Upon...Ch. 17 - a. Propose a mechanism for the following reaction:...Ch. 17 - Prob. 80PCh. 17 - Prob. 81PCh. 17 - Prob. 82PCh. 17 - Prob. 83PCh. 17 - Prob. 84PCh. 17 - In the presence of an acid catalyst, acetaldehyde...Ch. 17 - Prob. 86PCh. 17 - Prob. 87PCh. 17 - Prob. 88PCh. 17 - A compound reacts with methylmagnesium bromide...Ch. 17 - Show how each of the following compounds can be...Ch. 17 - Prob. 91PCh. 17 - Prob. 92PCh. 17 - The pKa values of the carboxylic acid groups of...Ch. 17 - The Baylis-Hillman reaction is a DABCO...Ch. 17 - Prob. 95PCh. 17 - Prob. 96P
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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 1arrow_forwardUsing 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 무ㅎ ?arrow_forwardIdentifying 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 Ararrow_forward
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