Domanda del libro di testo
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)
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Ch. 4 - Acids and Bases/Electron Flow
Mullins1st EditionOrganic Chemistry: A Learner Centered ApproachISBN: 9780137566471
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TOC.tableOfContents
- 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 1: Properties and Electrophilic Additions158
- Ch. 9 - Alkenes 2: 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 1: Infrared Spectroscopy and Mass Spectrometry54
- Ch. 15 - Structural Identification 2: Nuclear Magnetic Resonance Spectroscopy93
- Ch. 16 - Metals in Organic Chemistry48
- Ch. 17 - Carbonyl Addition Reactions: Aldehydes and Ketones45
- Ch. 18 - Nucleophilic Acyl Substitution 1: Carboxylic Acids18
- Ch. 19 - Nucleophilic Acyl Substitution 2: Carboxylic Acid Derivatives39
- Ch. 20 - Enolates: Carbonyl Addition and Substitution13
- Ch. 21 - Conjugated Systems 1: Stability and Addition Reactions56
- Ch. 22 - Conjugated Systems 2: Pericyclic Reactions54
- Ch. 23 - Benzene 1: Aromatic Stability and Substitution Reactions64
- Ch. 24 - Benzene 2: 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: 9780137566471Non è quello che usi tu?Cambia libro di testo
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Mullins 1st EditionCh. 4 - Acids and Bases/Electron FlowProblema 20c(i,ii,iii)
Mullins 1st EditionCh. 4 - Acids and Bases/Electron FlowProblema 20c(i,ii,iii)Capitolo 3, Problema 20c(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,
(c) 
Guida verificata passo dopo passo1
Step 1: Identify the acid and base in the reaction. Ethanolate (CH3CH2O⁻) is the base because it has a negative charge and can donate electrons. Acetic acid (CH3COOH) is the acid because it has a proton (H⁺) attached to the oxygen that can be donated.
Step 2: Determine the most electron-rich atom in the base. In ethanolate, the oxygen atom is the most electron-rich because it carries a negative charge and has lone pairs of electrons.
Step 3: Identify the most acidic hydrogen in the acid. In acetic acid, the hydrogen attached to the hydroxyl group (-OH) is the most acidic because it is bonded to an electronegative oxygen atom, which stabilizes the negative charge after deprotonation.
Step 4: Analyze the reaction mechanism. The base (ethanolate) will attack the acidic hydrogen of acetic acid, leading to the formation of ethanol (CH3CH2OH) and acetate ion (CH3COO⁻).
Step 5: Consider the equilibrium. The reaction is reversible, and the position of equilibrium depends on the relative acidity of acetic acid and ethanol, as well as the stability of the conjugate base (acetate ion) and conjugate acid (ethanol).
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Acids and Bases
In organic chemistry, acids are substances that can donate a proton (H+), while bases are substances that can accept a proton. The Brønsted-Lowry theory defines acids and bases based on their ability to transfer protons. In the given reaction, acetic acid acts as the acid, and ethanolate serves as the base.
Video consigliato:
02:49
The Lewis definition of acids and bases.
Electron-Rich Atoms
The most electron-rich atom in a base is typically the atom that has a lone pair of electrons available for bonding. In the case of ethanolate, the oxygen atom carries a negative charge and has a lone pair, making it the most electron-rich atom. This property is crucial for its ability to act as a base in the reaction.
Video consigliato:
01:44The difference between atomic numbers and atomic mass.
Acidic Hydrogens
The most acidic hydrogen in an acid is the hydrogen atom that is most easily released as a proton. In acetic acid, the hydrogen attached to the hydroxyl group (-OH) is the most acidic due to the stability of the resulting acetate ion after deprotonation. Identifying this hydrogen is essential for understanding the acid's reactivity.
Video consigliato:
00:48The definition of hydrogenation.
Pratica correlata
Domanda del libro di testo
Write the Keq expression for the following acid–base reactions. [You don't need to calculate Keq here.]
(c)
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Domanda del libro di testo
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)
1275
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Domanda del libro di testo
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 ⇌
638
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Domanda del libro di testo
Given the value of Keq for the following acid–base reactions, identify the weakest acid and the weakest base.
(a)
986
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Domanda del libro di testo
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)
1292
views