Esters

Question 1

Name and formula of molecules that form

Ethyl ethanoate

Answer 1

Ethanol:
CH3CH2OH

Ethanoic Acid:
CH3COOH

Question 2

Name and formula of molecules that form

Methyl ethanoate

Answer 2

Methanol:
CH3OH

Ethanoic Acid:
CH3COOH

Question 3

Name and formula of molecules that form

ethyl methanoate

Answer 3

Ethanol:
CH3CH2OH

Methanoic acid:
HCOOH

Question 4

Describe the practical to react alcohols and carboxylic acids to form esters.

Answer 4

Mix together the alcohol and carboxylic acid

Use concentrated sulfuric acid as a catalyst.

Heat the mixture.

Add to sodium carbonate solution (neutralises the acid, which is corrosive)

Question 5

State and explain a use of esters

Answer 5

Used in perfumes.
Pleasant smells, evaporate easily

(+ food flavourings)

Question 6

What type of reaction is the reaction of an alcohol and a carboxylic acid to form an ester?

Answer 6

Condensation reaction.

it produces water

Question 6

What type of reaction is the reaction of an alcohol and a carboxylic acid to form an ester?

Answer 6

Condensation reaction.

it produces water