Textbook Question
The reaction of (E)-3-chlorohex-3-ene with HCl results in the selective formation of 3,3-dichlorohexane instead of 3,4-dichlorohexane. Explain this result.
9
views
Ch. 8 - Alkenes I: Properties and Electrophilic Additions
Mullins1st EditionOrganic Chemistry: A Learner Centered ApproachISBN: 9780137566471
Not the one you use?Change textbookSelect a different textbook
Table of contents
- Ch. 2 - General Chemistry Translated: Finding the Electrons114
- Ch. 3 - Alkanes and Cycloalkanes: Properties and Conformational Analysis109
- Ch. 4 - Acids and Bases: Electron Flow144
- Ch. 5 - Chemical Reaction Analysis: Thermodynamics and Kinetics118
- Ch. 6 - Stereoisomerism: Arrangement of Atoms in Space112
- Ch. 7 - Principles of Green (Organic) Chemistry3
- Ch. 8 - Alkenes I: Properties and Electrophilic Additions158
- Ch. 9 - Alkenes II: Oxidation and Reduction150
- Ch. 10 - Alkynes: Electrophilic Addition and Redox Reactions101
- Ch. 11 - Properties and Synthesis of Alkyl Halides: Radical Reactions108
- Ch. 12 - Substitution and Elimination: Reactions of Haloalkanes172
- Ch. 13 - Alcohols, Ethers and Related Compounds: Substitution and Elimination239
- Ch. 14 - Structural Identification I: Infrared Spectroscopy and Mass Spectrometry54
- Ch. 15 - Structural Identification II: Nuclear Magnetic Resonance Spectroscopy93
- Ch. 16 - Metals in Organic Chemistry48
- Ch. 17 - Carbonyl Addition Reactions: Aldehydes and Ketones45
- Ch. 18 - Nucleophilic Acyl Substitution I: Carboxylic Acids18
- Ch. 19 - Nucleophilic Acyl Substitution II: Carboxylic Acid Derivatives39
- Ch. 20 - Enolates: Carbonyl Addition and Substitution13
- Ch. 21 - Conjugated Systems I: Stability and Addition Reactions56
- Ch. 22 - Conjugated Systems II: Pericyclic Reactions54
- Ch. 23 - Benzene I: Aromatic Stability and Substitution Reactions64
- Ch. 24 - Benzene II: Reactions Influenced by the Aromatic Ring62
- Ch. 25 - Amines: Structure, Reactions, and Synthesis27
- Ch. 26 - Amino Acids, Proteins, and Peptide Synthesis9
- Ch. 27 - Carbohydrates, Nucleic Acids, and Lipids54
Mullins1st EditionOrganic Chemistry: A Learner Centered ApproachISBN: 9780137566471Not the one you use?Change textbook
All textbooks
Mullins 1st EditionCh. 8 - Alkenes I: Properties and Electrophilic AdditionsProblem 77d
Mullins 1st EditionCh. 8 - Alkenes I: Properties and Electrophilic AdditionsProblem 77dChapter 7, Problem 77d
The acid-catalyzed hydration we learned here in Chapter 8 is reversible:
(d) How might you shift the equilibrium to the right?
Verified step by step guidance1
Step 1: Understand the acid-catalyzed hydration reaction. This reaction involves the addition of water (H₂O) to an alkene in the presence of an acid catalyst, forming an alcohol. The reaction is reversible, meaning the alcohol can revert back to the alkene and water under certain conditions.
Step 2: Recall Le Chatelier's Principle. This principle states that if a dynamic equilibrium is disturbed by changing the conditions, the system will adjust to counteract the disturbance and restore equilibrium. To shift the equilibrium to the right (toward the alcohol formation), you need to favor the forward reaction.
Step 3: Increase the concentration of water. By adding excess water to the reaction mixture, you increase the reactant concentration, which drives the equilibrium toward the formation of the alcohol (the product).
Step 4: Remove the alcohol product as it forms. If the alcohol is continuously removed from the reaction mixture (e.g., by distillation or extraction), the equilibrium will shift to the right to produce more alcohol to replace what was removed.
Step 5: Optimize reaction conditions. Ensure the acid catalyst is present in sufficient quantity and maintain appropriate temperature and pressure conditions that favor the forward reaction. Avoid conditions that favor the reverse reaction, such as high temperatures that might promote dehydration of the alcohol back to the alkene.
Verified video answer for a similar problem:
This video solution was recommended by our tutors as helpful for the problem above.
Video duration:
2mWas this helpful?
Key Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
Le Chatelier's Principle
Le Chatelier's Principle states that if a dynamic equilibrium is disturbed by changing the conditions, the position of equilibrium shifts to counteract the change. In the context of acid-catalyzed hydration, this principle can be applied to predict how changes in concentration, temperature, or pressure can influence the direction of the reaction.
Recommended video:
Guided course
04:12
The Electron Configuration
Acid-Catalyzed Hydration
Acid-catalyzed hydration is a reaction where an alkene reacts with water in the presence of an acid to form an alcohol. This process involves the formation of a carbocation intermediate and is reversible, meaning that the products can revert to reactants under certain conditions. Understanding this mechanism is crucial for manipulating the reaction's equilibrium.
Recommended video:
Guided course
06:34Acid-catalyzed hydration mechanism
Equilibrium Constant (K)
The equilibrium constant (K) quantifies the ratio of the concentrations of products to reactants at equilibrium for a reversible reaction. A larger K value indicates a greater concentration of products at equilibrium, while a smaller K suggests that reactants are favored. By manipulating conditions such as concentration or temperature, one can influence the value of K and shift the equilibrium position.
Recommended video:
Guided course
02:19The relationship between equilibrium constant and pKa.
Related Practice
Textbook Question
In addition to radicals, anions, and cations, a fourth class of reactive intermediates is carbenes. A neutral species, the simplest carbene has a molecular formula of CH2.
(a) Draw the Lewis structure of CH2.
2
views
Textbook Question
The acid-catalyzed hydration we learned here in Chapter 8 is reversible.
(a) Propose a mechanism for the formation of an alkene from an alcohol.
1
views
Textbook Question
North American termite soldiers, when encountering enemy insects, contract their mandibular muscles, expelling a mixture of chemicals that essentially trap their enemies in a glue-like substance. This weapon, built into the face of the termite, is called the fontanellar gun. It releases a mixture of pinene (62%), myrcene (27%), and limonene (11%).
(b) Suggest an acid-catalyzed mechanism by which pinene could be produced from limonene.
1
views
Textbook Question
The acid-catalyzed hydration we learned here in Chapter 8 is reversible:
(c) Which side of the reaction would be favored by running the reaction at high temperatures?
Textbook Question
The acid-catalyzed hydration we learned here in Chapter 8 is reversible:
(e) How might you shift the equilibrium to the left?
2
views