Textbook Question
Convert the following model into a condensed structure and line drawing. Draw the structures of two isomeric compounds.
Ch.23 - Organic and Biological Chemistry
Chapter 23, Problem 23.56b
Propose structures and draw condensed formulas for molecules that meet the following descriptions.
(b) An ester with the formula C6H12O2
Verified step by step guidance1
Step 1: Understand the structure of an ester. An ester is an organic compound where the hydrogen in the carboxyl group is replaced by a hydrocarbon chain. It is represented by the formula R-COO-R', where R and R' are any alkyl or aryl group.
Step 2: Identify the number of carbon atoms in the ester. The formula C6H12O2 indicates that there are 6 carbon atoms, 12 hydrogen atoms, and 2 oxygen atoms.
Step 3: Determine the structure of the ester. Given the formula, the ester could be a combination of a carboxylic acid and an alcohol. The carboxylic acid could be butanoic acid (C4H8O2) and the alcohol could be ethanol (C2H6O).
Step 4: Draw the condensed formula for the ester. The condensed formula for the ester formed from butanoic acid and ethanol is CH3CH2CH2COOCH2CH3.
Step 5: Draw the structure of the ester. The structure would have a carboxyl group (COO) in the middle, with a butyl group (CH3CH2CH2-) on one side and an ethyl group (-CH2CH3) on the other side.
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Key Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
Ester Functional Group
Esters are organic compounds formed from the reaction of an alcohol and a carboxylic acid, characterized by the functional group -COO-. They typically have pleasant odors and are commonly found in fats and oils. Understanding the structure of esters is crucial for identifying and drawing their condensed formulas.
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Carbonyl Functional Groups
Molecular Formula Interpretation
The molecular formula C6H12O2 indicates that the molecule contains six carbon atoms, twelve hydrogen atoms, and two oxygen atoms. This information is essential for determining the possible structural arrangements of the atoms and for ensuring that the proposed structures adhere to the rules of valency and bonding in organic chemistry.
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Condensed Structural Formulas
Condensed structural formulas provide a simplified representation of a molecule, showing the arrangement of atoms without depicting all the bonds explicitly. For esters, the condensed formula typically highlights the carbon chain and the ester functional group, allowing for a clearer understanding of the molecule's structure and its chemical properties.
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Related Practice
Textbook Question
Convert the following models into a condensed structures and line drawings.
(a)
Textbook Question
Propose structures and draw condensed formulas for molecules that meet the following descriptions.
(a) A ketone with the formula C5H10
Textbook Question
Propose structures and draw condensed formulas for molecules that meet the following descriptions.
(c) A compound with formula C2H5NO2 that is both an amine and a carboxylic acid
Textbook Question
Give line drawings for each of the following molecular formulas. You may have to use rings and/or multiple bonds in some instances.
(a) C2H7N