Textbook Question
Amino acids exist predominantly in one of the following forms. Which is it? Explain your answer.
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Ch. 4 - Acids and Bases: Electron Flow
Mullins1st EditionOrganic Chemistry: A Learner Centered ApproachISBN: 9780137566471
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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
Chapter 3, Problem 72c
Predict the product of the following Lewis acid–Lewis base reactions.
(c) 
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Identify the Lewis acid and Lewis base in the reaction. A Lewis acid is an electron pair acceptor, while a Lewis base is an electron pair donor.
Determine the lone pair of electrons on the Lewis base that will be donated to the Lewis acid. This typically involves identifying atoms with lone pairs, such as oxygen, nitrogen, or halogens.
Draw the interaction between the Lewis acid and Lewis base. Represent the donation of the electron pair from the base to the acid using an arrow pointing from the lone pair to the electron-deficient atom in the acid.
Form the product by combining the Lewis acid and Lewis base into a single species. This often results in the formation of a coordinate covalent bond between the two species.
Verify the structure of the product by ensuring that all atoms satisfy their valency requirements and that the formal charges are minimized, if possible.
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Key Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
Lewis Acids and Bases
Lewis acids are electron pair acceptors, while Lewis bases are electron pair donors. This definition expands the traditional Brønsted-Lowry concept of acids and bases, allowing for a broader range of chemical reactions. Understanding the nature of these species is crucial for predicting the products of reactions involving them.
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02:49
The Lewis definition of acids and bases.
Reaction Mechanism
A reaction mechanism describes the step-by-step process by which reactants transform into products. It includes the formation and breaking of bonds, as well as the intermediates formed during the reaction. Analyzing the mechanism helps in predicting the final products of Lewis acid-base reactions.
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Product Stability
The stability of the products formed in a reaction is influenced by factors such as sterics, electronics, and resonance. More stable products are generally favored in chemical reactions. Evaluating the stability of potential products is essential for making accurate predictions in Lewis acid-base reactions.
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Related Practice
Textbook Question
Using pKa values for the conjugate acids of the bases on each side of the reaction arrow, identify which side of the equilibrium would be favored in the following hypothetical reactions.
(c)
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Textbook Question
Suggest an arrow-pushing mechanism for each of the following acid–base reactions.
(d) [an intramolecular reaction]
Textbook Question
Predict the product of the following Lewis acid–Lewis base reactions.
(d) [an intramolecular reaction]
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Textbook Question
Using pKa values for the conjugate acids of the bases on each side of the reaction arrow, identify which side of the equilibrium would be favored in the following hypothetical reactions.
(a)
1
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Textbook Question
Suggest an arrow-pushing mechanism for each of the following acid–base reactions
(c)
2
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