Domanda del libro di testo
Are the pairs of compounds shown below the same molecule, isomers, or different molecules?
a.
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Ch.12 Introduction to Organic Chemistry: Alkanes
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
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McMurry 8th EditionCh.12 Introduction to Organic Chemistry: AlkanesProblema 13c
McMurry 8th EditionCh.12 Introduction to Organic Chemistry: AlkanesProblema 13cCapitolo 12, Problema 13c
Draw both condensed and line structures corresponding to the following IUPAC names and label each carbon as primary, secondary, tertiary, or quaternary.
c. 2,2,4-Trimethylpentane
Guida verificata passo dopo passo1
Step 1: Start by analyzing the IUPAC name '2,2,4-Trimethylpentane'. The parent chain is 'pentane', which means the main chain contains 5 carbon atoms connected in a straight chain. The prefixes '2,2,4-Trimethyl' indicate that there are three methyl (-CH₃) groups attached to the main chain: two on carbon 2 and one on carbon 4.
Step 2: Draw the condensed structure. Begin with the main chain of 5 carbons (pentane). Add the methyl groups to the appropriate carbons: two methyl groups on carbon 2 and one methyl group on carbon 4. The condensed structure will look like this: CH₃C(CH₃)₂CH₂CH(CH₃)CH₃.
Step 3: Draw the line structure. Represent the main chain as a zigzag line with 5 vertices (each vertex represents a carbon atom). Add branches for the methyl groups: two branches on the second vertex (carbon 2) and one branch on the fourth vertex (carbon 4). Ensure the structure reflects the correct connectivity.
Step 4: Label each carbon atom as primary, secondary, tertiary, or quaternary. A primary carbon is bonded to one other carbon, a secondary carbon is bonded to two other carbons, a tertiary carbon is bonded to three other carbons, and a quaternary carbon is bonded to four other carbons. For example, the central carbon at position 2 is quaternary because it is bonded to four carbons (two methyl groups and two carbons from the main chain).
Step 5: Verify the structure and labels. Double-check that the condensed and line structures match the IUPAC name and that each carbon is correctly labeled. This ensures the structure is accurate and consistent with the given name.
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IUPAC Nomenclature
IUPAC nomenclature is a systematic method for naming organic chemical compounds. It provides a set of rules to derive the names based on the structure of the molecule, including the longest carbon chain and the position of substituents. Understanding these rules is essential for accurately interpreting and drawing the structures of compounds like 2,2,4-trimethylpentane.
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3:18
IUPAC Naming Concept 3
Condensed and Line Structures
Condensed and line structures are two ways to represent chemical compounds visually. A condensed structure shows the arrangement of atoms in a more compact form, while a line structure uses lines to represent bonds between atoms, emphasizing the connectivity and geometry of the molecule. Both representations are crucial for understanding the molecular structure and for identifying functional groups and substituents.
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1:53Condensed Formula Concept 1
Carbon Classification
Carbon classification refers to categorizing carbon atoms based on their bonding environment. Carbons can be classified as primary (attached to one other carbon), secondary (attached to two), tertiary (attached to three), or quaternary (attached to four). This classification is important for understanding the reactivity and stability of the molecule, as well as for labeling the carbons in the given compound.
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04:19Classification of Matter
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