To show the reactions of ethanoic acid with ethanol

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8 Terms

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Theory

• Ethanoic acid (CH3COOH) is a weak acid but shows typical properties of acids

• It is reacted with (sodium carbonate, magnesium and) ethanol to show this

Note: These reactions test for carboxylic acids/distinguish carboxylic acids from another substance

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Procedure

➢ A few cm3 of ethanol are placed in a test tube

➢ Using a dropper a cm3 of ethanoic acid and three drops of sulfuric acid are added and the test tube is placed in a hot water bath for about ten minutes

Result: A “fruity smell” is observed

Note: No colour change is observed

<p>➢ A few cm3 of <strong>ethanol</strong> are placed in a <strong>test tube</strong></p><p>➢ Using a dropper a cm3 of <strong>ethanoic acid</strong> and three drops of <strong>sulfuric acid are added</strong> and the test tube is <strong>placed in a hot water bath</strong> for about ten minutes</p><p>Result: A <strong>“fruity smell”</strong> is observed</p><p>Note: <strong>No colour change</strong> is observed</p>
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Write an equation to show the reaction of ethanoic acid with ethanol

C2H5OH + CH3COOH —H+→ CH3COOC2H5 + H2O

<p>C2H5OH + CH3COOH —H+→ CH3COOC2H5 + H2O</p>
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What is the function of the concentrated sulfuric acid?

Sulfuric acid acts as a catalyst in this reaction

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Name the organic product formed

Ethyl ethanoate -(CH3COOC2H5)

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To what group of compounds does the organic product of this reaction belong and how is it

identified?

Ethyl ethanoate is an ester, esters have a distinctive “fruity smell”

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Why is no colour change observed in this reaction?

All of the reactants and products are colourless in this reaction

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What is this type of reaction known as?

Esterification reaction (Type of condensation reaction)