Textbook Question
In the following reactions,
(i) identify the acid and base,
(ii) identify the most electron-rich atom in the base,
(iii) identify the most acidic hydrogen in the acid,
(c)
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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 20b(i,ii,iii)
In the following reactions,
(i) identify the acid and base,
(ii) identify the most electron-rich atom in the base,
(iii) identify the most acidic hydrogen in the acid,
(b) 
Verified step by step guidance1
Step 1: Identify the acid and base in the reaction. Ethylamide contains a nitrogen atom with a lone pair of electrons, making it a potential base. Propan-2-ol contains an -OH group, which can donate a proton (H⁺), making it the acid in this reaction.
Step 2: Determine the most electron-rich atom in the base. In ethylamide, the nitrogen atom is the most electron-rich due to its lone pair of electrons, which makes it capable of accepting a proton.
Step 3: Identify the most acidic hydrogen in the acid. In propan-2-ol, the hydrogen atom attached to the oxygen in the -OH group is the most acidic because the oxygen atom is electronegative and stabilizes the negative charge formed after losing the proton.
Step 4: Analyze the reaction mechanism. The nitrogen atom in ethylamide (base) will use its lone pair to attack the acidic hydrogen of propan-2-ol (acid), leading to the formation of a conjugate acid and conjugate base.
Step 5: Consider the equilibrium. The reaction will establish an equilibrium between the acid-base pairs, and the position of equilibrium will depend on the relative strengths of the acid and base involved.
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Key Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
Acids and Bases
In organic chemistry, acids are substances that can donate a proton (H+), while bases are substances that can accept a proton. This concept is fundamental for understanding acid-base reactions, where the transfer of protons occurs between the acid and the base, leading to the formation of conjugate acid-base pairs.
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02:49
The Lewis definition of acids and bases.
Electron-Rich Atoms
Electron-rich atoms are typically those with lone pairs of electrons or negative charges, making them more likely to donate electrons in a reaction. In the context of bases, identifying the most electron-rich atom helps in understanding its reactivity and ability to accept protons during acid-base interactions.
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01:44The difference between atomic numbers and atomic mass.
Acidic Hydrogens
Acidic hydrogens are those that can be easily removed as protons in an acid-base reaction. They are usually attached to electronegative atoms, such as oxygen or nitrogen, which stabilize the resulting negative charge after deprotonation. Identifying the most acidic hydrogen is crucial for predicting the outcome of the reaction.
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00:48The definition of hydrogenation.
Related Practice
Textbook Question
In the following reactions,
(iv) provide an arrow-pushing mechanism of the proton transfer that will occur, and
(v) predict the product of the reactions. [You'll need to provide the lone pairs here.]
(b)
Textbook Question
In the following reactions,
(iv) provide an arrow-pushing mechanism of the proton transfer that will occur, and
(v) predict the product of the reactions. [You'll need to provide the lone pairs here.]
(c)
Textbook Question
In the following reactions,
(i) identify the acid and base,
(ii) identify the most electron-rich atom in the base,
(iii) identify the most acidic hydrogen in the acid,
(iv) provide an arrow-pushing mechanism of the proton transfer that will occur, and
(v) predict the product of the reactions. [You'll need to provide the lone pairs here.]
(d) H2O + HCl ⇌
Textbook Question
In the following reactions,
(iv) provide an arrow-pushing mechanism of the proton transfer that will occur, and
(v) predict the product of the reactions. [You'll need to provide the lone pairs here.]
(a)
1
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Textbook Question
In the following reactions,
(i) identify the acid and base,
(ii) identify the most electron-rich atom in the base,
(iii) identify the most acidic hydrogen in the acid,
(a)