Textbook Question
Write the IUPAC and common name, if any, for each of the following carboxylic acids:
b.
Ch.14 Carboxylic Acids, Esters, Amines, and Amides
Timberlake14thChemistry: An Introduction to General, Organic, and Biological ChemistryISBN: 9781292472249
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Table of contents
- Ch.1 Chemistry in Our Lives19
- Ch.2 Chemistry and Measurements80
- Ch.3 Matter and Energy53
- Ch.4 Atoms and Elements58
- Ch.5 Nuclear Chemistry42
- Ch.6 Ionic and Molecular Compounds57
- Ch.7 Chemical Quantities and Reactions38
- Ch.8 Gases30
- Ch.9 Solutions50
- Ch.10 Acids and Bases and Equilibrium64
- Ch.11 Introduction to Organic Chemistry: Hydrocarbons77
- Ch.12 Alcohols, Thiols, Ethers, Aldehydes, and Ketones82
- Ch.13 Carbohydrates54
- Ch.14 Carboxylic Acids, Esters, Amines, and Amides91
- Ch.15 Lipids61
- Ch.16 Amino Acids, Proteins, and Enzymes84
- Ch.17 Nucleic Acids and Protein Synthesis86
- Ch.18 Metabolic Pathways and ATP Production73
Timberlake14thChemistry: An Introduction to General, Organic, and Biological ChemistryISBN: 9781292472249Not the one you use?Change textbook
Chapter 14, Problem 6c
Draw the condensed structural formulas for a and b and line-angle formulas for c and d:
c. 3-ethylbenzoic acid
Verified step by step guidance1
Step 1: Understand the problem. You are tasked with drawing the condensed structural formula and line-angle formula for 3-ethylbenzoic acid. This compound consists of a benzene ring with a carboxylic acid (-COOH) group and an ethyl group (-CH₂CH₃) attached to specific positions on the ring.
Step 2: Identify the structure of benzoic acid. Benzoic acid is a benzene ring with a carboxylic acid (-COOH) group attached to one of its carbons. The carboxylic acid group is typically assigned position 1 on the ring.
Step 3: Determine the position of the ethyl group. The name '3-ethylbenzoic acid' indicates that the ethyl group (-CH₂CH₃) is attached to the third carbon of the benzene ring, relative to the carboxylic acid group at position 1.
Step 4: Draw the condensed structural formula. Start with the benzene ring, then add the carboxylic acid group (-COOH) at position 1 and the ethyl group (-CH₂CH₃) at position 3. The condensed structural formula will represent the connectivity of atoms in a compact form.
Step 5: Draw the line-angle formula. Represent the benzene ring as a hexagon with alternating double bonds. Attach the carboxylic acid group (-COOH) at position 1 and the ethyl group (-CH₂CH₃) at position 3 using lines to indicate bonds. Ensure the positions are clear and accurate.
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Key Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
Condensed Structural Formula
A condensed structural formula is a way of representing a chemical compound that shows the arrangement of atoms and the connectivity between them without depicting all the bonds explicitly. It typically groups atoms together to indicate how they are connected, making it easier to visualize the structure of the molecule in a compact form.
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1:53
Condensed Formula Concept 1
Line-Angle Formula
A line-angle formula, also known as a skeletal formula, is a simplified representation of a chemical structure where vertices represent carbon atoms and lines represent bonds. This method omits hydrogen atoms attached to carbons, making it easier to visualize complex organic molecules and their connectivity at a glance.
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01:24Bond Angles (Simplified) Concept 1
Substituted Aromatic Compounds
Substituted aromatic compounds are organic molecules that contain a benzene ring with one or more substituents attached to it. In the case of 3-ethylbenzoic acid, the ethyl group is a substituent on the benzene ring, and understanding the position of this substituent is crucial for accurately drawing the structural formulas.
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5:07Naming Alkanes with Substituents Example 1
Related Practice
Textbook Question
Write the IUPAC and common name, if any, for each of the following carboxylic acids:
b.
Textbook Question
Draw the condensed structural formulas for a and b and line-angle formulas for c and d:
a. 3,4-dibromobutanoic acid
Textbook Question
Identify the compound in each group that is most soluble in water. Explain.
b. pentane, 1-hexanol, propanoic acid
Textbook Question
Identify the compound in each group that is most soluble in water. Explain.
b. ethanoic acid (acetic acid), hexanoic acid, octanoic acid
Textbook Question
Write the balanced chemical equation for the dissociation of each of the following carboxylic acids in water:
a. pentanoic acid