교과서 질문
What reagents would you use to convert methyl propanoate to the following compounds?
c. N-ethylpropanamide
d. propanoic acid
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Ch. 15 - Reactions of Carboxylic Acids and Carboxylic Acid Derivatives
Bruice8th EditionOrganic ChemistryISBN: 9780135213711
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TOC.tableOfContents
- Ch. 1 - Remembering General Chemistry: Electronic Structure and Bonding31
- Ch. 2 - Acids and Bases: Central to Understanding Organic Chemistry84
- Ch. 3 - An Introduction to Organic Compounds: Nomenclature, Physical Properties, and Structure183
- Ch. 4 - Isomers: The Arrangement of Atoms in Space121
- Ch. 5 - Alkenes: Structure, Nomenclature, and an Introduction to Reactivity • Thermodynamics and Kinetics83
- Ch. 6 - The Reactions of Alkenes • The Stereochemistry of Addition Reactions175
- Ch. 7 - The Reactions of Alkynes • An Introduction to Multistep Synthesis119
- Ch. 8 - Delocalized Electrons: Their Effect on Stability, pKa, and the Products of a Reaction • Aromaticity and Electronic Effects: An Introduction to the Reactions of Benzene148
- Ch. 9 - Substitution and Elimination Reactions of Alkyl Halides212
- Ch. 10 - Reactions of Alcohols, Ethers, Epoxides, Amines, and Sulfur-Containing Compounds131
- Ch. 11 - Organometallic Compounds60
- Ch. 12 - Radicals90
- Ch. 13 - Mass Spectrometry; Infrared Spectroscopy; UV/Vis Spectroscopy62
- Ch. 14 - NMR Spectroscopy95
- Ch. 15 - Reactions of Carboxylic Acids and Carboxylic Acid Derivatives123
- Ch. 16 - Reactions of Aldehydes and Ketones • More Reactions of Carboxylic Acid Derivatives141
- Ch. 17 - Reactions at the Alpha-Carbon101
- Ch. 18 - Reactions of Benzene and Substituted Benzenes144
- Ch. 19 - More About Amines • Reactions of Heterocyclic Compounds49
- Ch. 20 - The Organic Chemistry of Carbohydrates80
- Ch. 21 - Amino Acids, Peptides, and Proteins57
- Ch. 22 - Catalysis in Organic Reactions and in Enzymatic Reactions35
- Ch. 23 - The Organic Chemistry of the Coenzymes—Compounds Derived from Vitamins1
- Ch. 28 - Pericyclic Reactions58
15장, 문제 54
a. Which compound would you expect to have a greater dipole moment, methyl acetate or butanone?
b. Which would you expect to have a higher boiling point?
검증된 단계별 안내1
Step 1: Analyze the molecular structures of methyl acetate and butanone. Methyl acetate is an ester with the formula CH3COOCH3, while butanone is a ketone with the formula CH3COCH2CH3. Both compounds contain polar functional groups, but their dipole moments depend on the distribution of electron density and molecular geometry.
Step 2: Compare the dipole moments of the two compounds. The ester group in methyl acetate has two oxygen atoms contributing to its polarity, while the ketone group in butanone has one oxygen atom. The dipole moment is influenced by the electronegativity of oxygen and the molecular geometry. Consider how the electron density is distributed in each molecule.
Step 3: Evaluate the boiling points of the two compounds. Boiling point is influenced by intermolecular forces such as hydrogen bonding, dipole-dipole interactions, and London dispersion forces. Butanone, being a ketone, has a slightly larger molecular size and more surface area for dispersion forces compared to methyl acetate, which may affect its boiling point.
Step 4: Consider the functional groups and molecular weights. Methyl acetate has a molecular weight of 74 g/mol, while butanone has a molecular weight of 72 g/mol. Despite the similar molecular weights, the functional groups and intermolecular forces play a significant role in determining boiling points.
Step 5: Summarize the findings. Methyl acetate is expected to have a greater dipole moment due to the ester group with two oxygen atoms. Butanone is likely to have a higher boiling point due to stronger dispersion forces and dipole-dipole interactions associated with its ketone group and larger molecular surface area.
비슷한 문제에 대한 검증된 영상 답변:
이 영상 해법은 위 문제에 도움이 된다고 튜터들이 추천한 것입니다.
영상 길이:
3m주요 개념
질문에 올바르게 답하기 위해 반드시 이해해야 하는 핵심 개념들은 다음과 같습니다.
Dipole Moment
The dipole moment is a measure of the separation of positive and negative charges in a molecule, indicating its polarity. It arises from differences in electronegativity between atoms, leading to uneven charge distribution. A higher dipole moment suggests a more polar molecule, which can influence solubility and boiling points.
추천 영상:
01:46
How dipole-dipole forces work.
Boiling Point
The boiling point of a compound is the temperature at which its vapor pressure equals the external pressure, causing it to change from liquid to gas. Factors affecting boiling points include molecular weight, intermolecular forces (like hydrogen bonding and dipole-dipole interactions), and molecular structure. Generally, stronger intermolecular forces lead to higher boiling points.
추천 영상:
03:08How IMFs are related to melting and boiling points.
Intermolecular Forces
Intermolecular forces are the forces of attraction or repulsion between molecules, influencing physical properties such as boiling and melting points. Key types include hydrogen bonds, dipole-dipole interactions, and London dispersion forces. The strength and type of these forces depend on molecular structure and polarity, affecting how substances behave in different states.
추천 영상:
03:01How Van der Waals forces work.
관련 실천
교과서 질문
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교과서 질문
What compounds are obtained from the following hydrolysis reactions?
d.
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교과서 질문
What reagents would you use to convert methyl propanoate to the following compounds?
a. isopropyl propanoate
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교과서 질문
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교과서 질문
What compounds are obtained from the following hydrolysis reactions?
c.
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