ORGANIC CHEMISTRY
5th Edition
ISBN: 9781259977596
Author: SMITH
Publisher: MCG
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Textbook Question
Chapter 3, Problem 3.53P
THC is the active component in marijuana, and ethanol is the alcohol in alcoholic beverages. Explain why drug screenings are able to detect the presence of THC but not ethanol weeks after substances have been introduced into the body.
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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
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: ☐
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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.
18
Ar
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 3 Solutions
ORGANIC CHEMISTRY
Ch. 3 - Prob. 3.1PCh. 3 - (a) Classify the carbon atoms in each compound as...Ch. 3 - Problem 3.3 Classify a carbon atom by the number...Ch. 3 - Classify each alkyl halide and alcohol as , or...Ch. 3 - Prob. 3.5PCh. 3 - Prob. 3.6PCh. 3 - Draw the structure of a compound of molecular...Ch. 3 - Prob. 3.8PCh. 3 - Prob. 3.9PCh. 3 - Draw the structure of a compound fitting each...
Ch. 3 - Draw structures that fit each description and name...Ch. 3 - What types of intermolecular forces are present in...Ch. 3 - Which compound in each pair has the higher boiling...Ch. 3 - Explain why the boiling point of propanamide, is...Ch. 3 - Predict which compound in each pair has the higher...Ch. 3 - Prob. 3.16PCh. 3 - Which compounds are water soluble? a. b. c.Ch. 3 - a Label the hydrophobic and hydrophilic portions...Ch. 3 - Prob. 3.19PCh. 3 - Prob. 3.20PCh. 3 - Prob. 3.21PCh. 3 - Prob. 3.22PCh. 3 - Problem 3.23 (a) What types of intermolecular...Ch. 3 - Prob. 3.24PCh. 3 - Prob. 3.25PCh. 3 - Problem 3.26 Label the electrophilic and...Ch. 3 - Problem 3.27 Considering only electron density,...Ch. 3 - Prob. 3.28PCh. 3 - 3.29
Identify the functional groups in the...Ch. 3 - Prob. 3.30PCh. 3 - 3.31 For each alkane: (a) classify each carbon...Ch. 3 - 3.32 Identify the functional groups in each...Ch. 3 - 3.33 Identify each functional group located in the...Ch. 3 - 3.34 (a)Identify the functional groups in...Ch. 3 - Draw seven constitutional isomers with molecular...Ch. 3 - Prob. 3.36PCh. 3 - Prob. 3.37PCh. 3 - Prob. 3.38PCh. 3 - Intramolecular force of attraction are often...Ch. 3 - 3.40 (a) Draw four compounds with molecular...Ch. 3 - 3.41 Rank the compounds in each group in order of...Ch. 3 - Explain why CH3CH2NHCH3 has higher boiling point...Ch. 3 - Prob. 3.43PCh. 3 - 3.44 Rank the following compounds in order of...Ch. 3 - Prob. 3.45PCh. 3 - 3.46 Rank the following compounds in order of...Ch. 3 - 3.47 Which of the following molecules can hydrogen...Ch. 3 - 3.48 Explain why diethylether and have similar...Ch. 3 - Prob. 3.49PCh. 3 - 3.50 Predict the solubility of each of the...Ch. 3 - Prob. 3.51PCh. 3 - Prob. 3.52PCh. 3 - 3.53 THC is the active component in marijuana, and...Ch. 3 - Prob. 3.54PCh. 3 - Prob. 3.55PCh. 3 - 3.56 Label the electrophilic and nucleophilic...Ch. 3 - 3.57 By using only electron density arguments,...Ch. 3 - 3.58 The composition of a cell membrane is not...Ch. 3 - Prob. 3.59PCh. 3 - 3.60 Quinapril (trade name Accupril) is a drug...Ch. 3 - 3.61 Answer each question about oxycodone, a...Ch. 3 - Prob. 3.62PCh. 3 - Prob. 3.63PCh. 3 - 3.64 Explain why A is less water soluble than B,...Ch. 3 - 3.65 Recall from section 1.10B that there is...
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- Homework 13 (Ch17) Question 4 of 4 (1 point) | Question Attempt: 2 of 2 ✓ 1 ✓ 2 = 3 4 Time Remaining: 4:25:54 Using the thermodynamic information in the ALEKS Data tab, calculate the standard reaction free energy of the following chemical reaction: 2CH3OH (g)+302 (g) → 2CO2 (g) + 4H₂O (g) Round your answer to zero decimal places. ☐ kJ x10 ☐ Subm Check 2020 Hill LLC. All Rights Reserved. Terms of Use | Privacy Cearrow_forwardIdentifying the major species in weak acid or weak base equilibria Your answer is incorrect. • Row 2: Your answer is incorrect. • Row 3: Your answer is incorrect. • Row 6: Your answer is incorrect. 0/5 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: HF 0.1 mol of NaOH is added to 1.0 L of a 0.7M HF solution. bases: 0.13 mol of HCl is added to 1.0 L of a solution that is 1.0M in both HF and KF. Exponent other: F acids: HF bases: F other: K 1 0,0,... ? 000 18 Ararrow_forwardUsing 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 4.50 atm of nitrosyl chloride (NOCI) and 6.38 atm of chlorine (C12) at 212. °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. 0.035 atm ✓ G 00. 18 Ararrow_forward
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