Domanda del libro di testo
Give the skeletal structure and name of the straight-chain alkanes whose molecular formula is shown.
(a) C3H8
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Ch.4 Introduction to Organic Compounds
Frost4th EditionGeneral, Organic and Biological ChemistryISBN: 9780134988696
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TOC.tableOfContents
- Ch.4 Introduction to Organic Compounds75
- Ch.5 Chemical Reactions19
- Ch.6 Carbohydrates Life's Sweet Molecules62
- Ch.7 States of Matter and Their Attractive Forces8
- Ch.8 Solution Chemistry Sugar and Water Do Mix4
- Ch.10 Proteins Workers of the Cell89
- Ch.11 Nucleic Acids Big Molecules with a Big Role69
- Ch.12 Food as Fuel An Overview of Metabolism65
Frost4th EditionGeneral, Organic and Biological ChemistryISBN: 9780134988696Non è quello che usi tu?Cambia libro di testo
Capitolo 1, Problema 48b
Give the skeletal structure and name of the straight-chain alkanes whose molecular formula is shown.
(b) C10H22
Guida verificata passo dopo passo1
Step 1: Understand the problem. The molecular formula C₁₀H₂₂ represents a straight-chain alkane. Alkanes are hydrocarbons with only single bonds between carbon atoms, and their general formula is CₙH₂ₙ₊₂.
Step 2: Determine the number of carbon atoms in the chain. The subscript '10' in C₁₀H₂₂ indicates there are 10 carbon atoms in the molecule.
Step 3: Draw the skeletal structure. A straight-chain alkane means all 10 carbon atoms are connected in a single, unbranched chain. Represent each carbon atom as a vertex and connect them with single bonds. Hydrogen atoms are added to ensure each carbon has four bonds.
Step 4: Name the alkane. The name of a straight-chain alkane with 10 carbon atoms follows the IUPAC naming convention. The prefix 'dec-' is used for 10 carbons, and the suffix '-ane' indicates it is an alkane. Therefore, the name is 'decane'.
Step 5: Verify the molecular formula. Count the total number of hydrogen atoms in the skeletal structure to ensure it matches the formula C₁₀H₂₂. Each carbon atom should have enough hydrogens to satisfy the single-bond rule.
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Alkanes
Alkanes are saturated hydrocarbons consisting only of carbon (C) and hydrogen (H) atoms, connected by single bonds. They follow the general formula CnH2n+2, where 'n' is the number of carbon atoms. Alkanes are characterized by their straight-chain or branched structures and are known for being relatively unreactive compared to other hydrocarbons.
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1:20
Naming Alkanes Example 1
Molecular Formula
A molecular formula indicates the number and type of atoms in a molecule, providing essential information about its composition. For example, C₁₀H₂₂ specifies that the molecule contains ten carbon atoms and twenty-two hydrogen atoms. Understanding the molecular formula is crucial for determining the structure and properties of the compound.
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02:08Molecular Formula
Skeletal Structure
The skeletal structure, or line-angle structure, is a simplified representation of a molecule that shows the arrangement of atoms and bonds without explicitly drawing all the hydrogen atoms. In this representation, carbon atoms are implied at the ends and intersections of lines, making it easier to visualize the molecular framework. For C₁₀H₂₂, the skeletal structure would depict a straight-chain arrangement of ten carbon atoms.
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2:26Skeletal Formula Concept 1
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