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Chemistry > 4(g) Esters > Flashcards

4(g) Esters Flashcards

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1
Q

Functional Group

A

-COO

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2
Q

What is ethyl ethanoate?

A

An ester
Formed when ethanol + ethanoic acid react in the presence of an acid catalyst

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3
Q

How are esters formed?

A

-OH comes off carboxylic acid
-H comes off alcohol
FORMS WATER

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4
Q

General equation for formation of esters

A

Carboxylic Acid + Alcohol ⇌ Ester + Water

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5
Q

How to make a simple ester: Ethyl Ethanoate

A
  1. Heat Ethanoic Acid + Ethanol + few drops of concentrated sulfuric acid (catalyst)

This is Esterification + Condensation
Reversible
To maximise yield of ethyl ethanoate, pure ethanol + ethanoic acid is used

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6
Q

Esterification

A

A chemical reaction where an alcohol and a carboxylic acid react together to form an ester

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7
Q

Uses of esters

A

Volatile (vaporise easily
Solvents

Used for food flavourings + perfumes

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Chemistry (28 decks)

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