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Ch.14 Carboxylic Acids, Esters, Amines, and Amides
Timberlake - Chemistry: An Introduction to General, Organic, and Biological Chemistry 13th Edition
Timberlake13th EditionChemistry: An Introduction to General, Organic, and Biological ChemistryISBN: 9780134421353당신이 사용하는 게 아니라요?교과서 변경
모든 교과서Timberlake 13th EditionCh.14 Carboxylic Acids, Esters, Amines, and Amides문제 79a
14장, 문제 79a

Propyl acetate is the ester that gives the odor and smell of pears.
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a. Draw the condensed structural formula for propyl acetate.

검증된 단계별 안내
1
Understand the structure of an ester: Esters are organic compounds with the general formula RCOOR', where R and R' are alkyl or aryl groups. The functional group of an ester is -COO-.
Identify the components of propyl acetate: The name 'propyl acetate' indicates that it is an ester formed from propanol (propyl group) and acetic acid (acetate group). The propyl group (C3H7) is attached to the oxygen atom of the ester functional group, while the acetate group (CH3CO-) forms the other part of the molecule.
Write the condensed structural formula for the acetate group: The acetate group is derived from acetic acid (CH3COOH) by removing the hydrogen atom from the hydroxyl group (-OH). Its condensed structural formula is CH3CO-.
Write the condensed structural formula for the propyl group: The propyl group is a three-carbon alkyl group with the formula C3H7. It can be written as CH3CH2CH2- when attached to the oxygen atom of the ester functional group.
Combine the two groups to form the condensed structural formula of propyl acetate: Attach the propyl group (CH3CH2CH2-) to the oxygen atom of the acetate group (CH3CO-). The resulting condensed structural formula is CH3COOCH2CH2CH3.

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2m

주요 개념

질문에 올바르게 답하기 위해 반드시 이해해야 하는 핵심 개념들은 다음과 같습니다.

Ester Functional Group

An ester is a chemical compound formed from the reaction between an alcohol and a carboxylic acid, characterized by the functional group -COO-. Esters are known for their distinctive odors and are commonly found in natural and synthetic flavors and fragrances. Understanding the structure of esters is crucial for drawing their condensed structural formulas.
추천 영상:
가이드 코스
1:32
Functional Groups with Carbonyls Concept 3

Condensed Structural Formula

A condensed structural formula is a way of representing a chemical compound that shows the arrangement of atoms in a molecule without depicting all the bonds explicitly. It typically groups atoms together to indicate how they are connected, making it easier to visualize the molecular structure. For propyl acetate, the condensed formula will reflect its ester nature and the specific arrangement of carbon, hydrogen, and oxygen atoms.
추천 영상:
가이드 코스
1:53
Condensed Formula Concept 1

Chemical Nomenclature

Chemical nomenclature is the systematic naming of chemical compounds based on their structure and functional groups. For esters, the name is derived from the alcohol and the acid used in its formation. In the case of propyl acetate, the name indicates that it is derived from propanol (the alcohol) and acetic acid (the acid), which is essential for understanding its properties and reactivity.
추천 영상:
가이드 코스
00:58
Chemical Reaction: Chemical Change Concept 1
관련 실천
교과서 질문

Propyl acetate is the ester that gives the odor and smell of pears.

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d. Write the balanced chemical equation for the base hydrolysis of propyl acetate with NaOH.

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교과서 질문

Draw the condensed structural or line-angle formulas for the products from the hydrolysis of each of the following:

b.

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교과서 질문

Propyl acetate is the ester that gives the odor and smell of pears.

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e. How many milliliters of a 0.208 M NaOH solution is needed to completely hydrolyze (saponify) 1.58 g of propyl acetate?

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교과서 질문

Draw the line-angle formula and write the IUPAC name for each of the following:

a. A carboxylic acid that has the formula C6H12O2, with no substituents

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교과서 질문

Draw the condensed structural or line-angle formulas for the products from the hydrolysis of each of the following:

b.

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교과서 질문

Propyl acetate is the ester that gives the odor and smell of pears.

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b. Write the balanced chemical equation for the formation of propyl acetate.

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