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,
(c)
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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
Capitolo 3, Problema 21c
Write the Keq expression for the following acid–base reactions. [You don't need to calculate Keq here.]
(c) 
Guida verificata passo dopo passo1
Step 1: Identify the acid and base on the reactant side. In this reaction, cyclopentanethiol (SH group) acts as the acid, and isopropoxide (-O group) acts as the base.
Step 2: Identify the conjugate acid and conjugate base on the product side. Cyclopentanethiolate (S⁻ group) is the conjugate base, and isopropanol (HO group) is the conjugate acid.
Step 3: Write the equilibrium constant expression (Keq) for the acid-base reaction. Keq is defined as the ratio of the concentrations of the products to the concentrations of the reactants.
Step 4: Use the chemical species to construct the Keq expression. The general form is: Keq = [Products]/[Reactants]. For this reaction, Keq = ([Cyclopentanethiolate] × [Isopropanol]) / ([Cyclopentanethiol] × [Isopropoxide]).
Step 5: Ensure that the expression includes only the species involved in the equilibrium and that it reflects the stoichiometry of the reaction. Double-check that the charges and chemical formulas are correctly represented.
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Concetti chiave
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Equilibrium Constant (K_eq)
The equilibrium constant (K_eq) is a numerical value that expresses the ratio of the concentrations of products to reactants at equilibrium for a given chemical reaction. It is derived from the law of mass action and is specific to a particular reaction at a given temperature. For acid-base reactions, K_eq can indicate the strength of the acids and bases involved.
Video consigliato:
02:19
The relationship between equilibrium constant and pKa.
Acid-Base Reactions
Acid-base reactions involve the transfer of protons (H⁺ ions) between reactants. In these reactions, acids donate protons while bases accept them. Understanding the nature of the acids and bases involved is crucial for writing the correct K_eq expression, as it determines the direction of the equilibrium and the species present at equilibrium.
Video consigliato:
02:49The Lewis definition of acids and bases.
Writing K_eq Expressions
To write the K_eq expression for an acid-base reaction, one must identify the products and reactants and express the equilibrium constant as the ratio of the concentrations of the products raised to their stoichiometric coefficients over the concentrations of the reactants raised to their coefficients. This process requires careful attention to the balanced chemical equation and the states of the compounds involved.
Video consigliato:
02:42How to write the condensed structures for aldehydes and ketones.
Pratica correlata
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
views
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 ⇌
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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)
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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.
(c)
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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.
(b)
1221
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