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Chemistry
Unit C7.1

Alcohols,
Carboxylic acids
& Esters

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Alkanes
Name Formula Diagram

Methane CH4 H
H-C-H
H

Ethane C 2H 6 H H
H-C-C-H
H H

Propane C 3H 8 H H H
H-C-C-C-H
H H H

Butane C4H10 H H H H
H-C-C-C-C-H
H H H H

Pentane C5H12 H H H H H
H-C-C-C-C-C-H
H H…

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Alcohols
Name Long Formula Short Formula

Methanol CH3OH CH3OH

Ethanol CH3CH2OH C2H5OH

Propanol CH3CH2CH2OH C3H7OH

Butanol CH3CH2CH2CH2OH C4H9OH

Pentanol CH3CH2CH2CH2CH2OH C5H11OH

Hexanol CH3CH2CH2CH2CH2CH2OH C6H13OH


Straight alcohol follow the formula: CnH2n+1OH

! ! !
H H
H H

H C O C
O H
H
H
H H


Water - H2O…

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Carboxylic Acids
Carboxylic acids have the functional group -COOH

Name Formula

Methanoic Acid HCOOH

Ethanoic Acid CH3COOH

Propanoic Acid C2H5COOH



O H




H C O


Methanoic Acid

O H
H



H C C O



H

Ethanoic Acid

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Preparation of Esters
An alcohol can react with a carboxylic acid to make esters. The reaction happens on
warming the alcohol and the acid in the presence of a little sulfuric acid to act as a catalyst.


O H H
H


H C O H
H C C O

H…

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Fats, oils and lipids.
Propan - tri - ol


H H H



H C C C H




O O O Ester Link




O C C C O


O
CH3COOH
C3H7COOH
C2H5COOH


3 carboxylix acids. These can be the same or different


Saturated and Unsaturated
Name Diagram Notes

Saturated H H…

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