Domanda del libro di testo
Which of the preceding compounds forms hydrogen bonds with a solvent such as ethanol?
1. CH3CH2OCH2CH2OH
2. CH3CH2N(CH3)2
3. CH3CH2CH2CH2Br
1787
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Ch. 3 - An Introduction to Organic Compounds: Nomenclature, Physical Properties, and Structure
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
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Bruice 8th EditionCh. 3 - An Introduction to Organic Compounds: Nomenclature, Physical Properties, and StructureProblema 32
Bruice 8th EditionCh. 3 - An Introduction to Organic Compounds: Nomenclature, Physical Properties, and StructureProblema 32Capitolo 3, Problema 32
What is the smallest straight-chain alkane that is a liquid at room temperature (which is about 25 °C)?
Guida verificata passo dopo passo1
Understand the problem: We are tasked with identifying the smallest straight-chain alkane that exists as a liquid at room temperature (approximately 25 °C). Alkanes are hydrocarbons with the general formula CnH2n+2, and their physical state depends on molecular size and intermolecular forces.
Recall the trend: The physical state of alkanes (gas, liquid, or solid) at room temperature depends on their molecular weight and boiling point. Smaller alkanes (with fewer carbon atoms) tend to be gases, while larger alkanes are liquids or solids due to stronger London dispersion forces.
Identify the boiling point range: For an alkane to be a liquid at room temperature, its boiling point must be between 25 °C and 100 °C. Alkanes with boiling points below 25 °C are gases, and those above 100 °C are typically liquids or solids.
Consult boiling point data: Look up the boiling points of straight-chain alkanes (e.g., methane, ethane, propane, butane, pentane, hexane, etc.) to determine the smallest alkane whose boiling point falls within the liquid range at room temperature.
Conclude the smallest alkane: Based on the boiling point data, identify the straight-chain alkane with the lowest molecular weight that meets the criteria of being a liquid at room temperature.
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Alkanes
Alkanes are saturated hydrocarbons consisting only of carbon and hydrogen atoms, connected by single bonds. They follow the general formula CnH2n+2, where 'n' is the number of carbon atoms. Alkanes can be straight-chain or branched, and their physical properties, such as boiling and melting points, vary with molecular size.
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Functionalizing Alkanes
Boiling Point
The boiling point of a substance is the temperature at which its vapor pressure equals the external pressure, causing it to change from liquid to gas. For alkanes, the boiling point increases with molecular weight due to greater van der Waals forces. Understanding boiling points helps determine the state of an alkane at a given temperature.
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03:08How IMFs are related to melting and boiling points.
State of Matter at Room Temperature
Room temperature, typically around 25 °C, is a standard reference point for assessing the physical state of substances. Alkanes with fewer than five carbon atoms (like methane and ethane) are gases at this temperature, while those with five or more carbons are liquids. Identifying the smallest alkane that is liquid at room temperature requires knowledge of these state changes.
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Pratica correlata
Domanda del libro di testo
Predict the approximate size of the following bond angles.
(b) the C—N—C bond angle in a secondary amine
1919
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Domanda del libro di testo
Which of the preceding compounds forms hydrogen bonds with a solvent such as ethanol?
4. CH3CH2CH2NHCH3
5. CH3CH2CH2COOH
6. CH3CH2CH2CH2F
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Domanda del libro di testo
Which of the following compounds forms hydrogen bonds between its molecules?
1. CH3CH2OCH2CH2OH
2. CH3CH2N(CH3)2
3. CH3CH2CH2CH2Br
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Domanda del libro di testo
Predict the approximate size of the following bond angles.
(a) the C—O—C bond angle in an ether
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Domanda del libro di testo
Predict the approximate size of the following bond angles.
(d) the C—N—C bond angle in a quaternary ammonium salt
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