Domanda del libro di testo
Many hair conditioners contain an ammonium salt such as the following to help prevent 'fly-away' hair. These ions will react with neither acid nor base. Provide a reason why.
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Ch.16 Amines
McMurry8th EditionFundamentals of General, Organic, and Biological ChemistryISBN: 9780134015187
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TOC.tableOfContents
- Ch.1 Matter and Measurements27
- Ch.2 Atoms and the Periodic Table20
- Ch.3 Ionic Compounds8
- Ch.4 Molecular Compounds23
- Ch.5 Classification & Balancing of Chemical Reactions12
- Ch.6 Chemical Reactions: Mole and Mass Relationships28
- Ch.7 Chemical Reactions: Energy, Rate and Equilibrium64
- Ch.8 Gases, Liquids and Solids24
- Ch.9 Solutions52
- Ch.10 Acids and Bases25
- Ch.11 Nuclear Chemistry22
- Ch.12 Introduction to Organic Chemistry: Alkanes57
- Ch.13 Alkenes, Alkynes, and Aromatic Compounds47
- Ch.14 Some Compounds with Oxygen, Sulfur, or a Halogen50
- Ch.15 Aldehydes and Ketones45
- Ch.16 Amines42
- Ch.17 Carboxylic Acids and Their Derivatives57
- Ch.18 Amino Acids and Proteins82
- Ch.19 Enzymes and Vitamins63
- Ch.20 Carbohydrates44
- Ch.21 The Generation of Biochemical Energy65
- Ch.22 Carbohydrate Metabolism45
- Ch.23 Lipids42
- Ch.24 Lipid Metabolism33
- Ch.25 Protein and Amino Acid Metabolism24
- Ch.26 Nucleic Acids and Protein Synthesis45
McMurry8th EditionFundamentals of General, Organic, and Biological ChemistryISBN: 9780134015187Non è quello che usi tu?Cambia libro di testo
Capitolo 16, Problema 44
Choline has the following structure. Do you think that this substance reacts with aqueous hydrochloric acid? If so, what is the product? If not, why not?
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Examine the structure of choline. Choline is an organic compound with a hydroxyl group (-OH) and a quaternary ammonium group (N⁺ with four alkyl groups attached). The quaternary ammonium group is already positively charged and does not have a lone pair of electrons to accept a proton.
Understand the nature of hydrochloric acid (HCl). HCl is a strong acid that dissociates completely in water to produce H⁺ (protons) and Cl⁻ (chloride ions). Acids typically react with bases or substances that can accept protons.
Determine if choline can react with HCl. Since the quaternary ammonium group in choline is already positively charged and cannot accept additional protons, it will not react with HCl. The hydroxyl group (-OH) in choline is not basic enough to react with HCl either.
Conclude that choline does not react with aqueous hydrochloric acid. The structure of choline does not have any functional groups that can interact with H⁺ ions from HCl.
Summarize the reasoning: Choline does not react with aqueous HCl because its quaternary ammonium group is already fully protonated and the hydroxyl group is not reactive under these conditions.
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Choline Structure and Properties
Choline is a quaternary ammonium compound with a positively charged nitrogen atom and a hydroxyl group. Its structure includes a hydrocarbon chain, which influences its solubility and reactivity. Understanding its molecular structure is essential to predict how it interacts with acids and other reagents.
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Percorso guidato
02:54
Physical Properties Concept
Acid-Base Reactions
Acid-base reactions involve the transfer of protons (H+) between substances. In this context, hydrochloric acid (HCl) can donate protons, and choline, being a basic compound due to its nitrogen atom, can accept protons. This interaction is crucial for determining whether a reaction occurs and what products are formed.
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Percorso guidato
03:08Acid-Base Reactions Concept 1
Reaction Products
The products of a reaction depend on the reactants' nature and the conditions under which the reaction occurs. In the case of choline and hydrochloric acid, the expected product would be a choline chloride salt, formed by the protonation of choline. Understanding how to predict reaction products is vital for analyzing chemical interactions.
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1:08Energy Production In Biochemical Pathways Example 1
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