Drawing and naming esters
3 marks · EasyThe table below shows reactants used to make different esters.
| Alcohol | Carboxylic Acid |
|---|---|
| Methanol | Ethanoic acid |
| Propanol | Butanoic acid |
| Butanol | Methanoic acid |
Name the ester formed from methanol and ethanoic acid.
Write the structural formula for the ester formed from propanol and butanoic acid.
State one use of esters.
Work this out on paper, then compare with the answer and worked solution below. With a free account you can submit written answers for marking.
Show answer
(a) Methyl ethanoate
(b) CH3CH2CH2COOCH2CH2CH3
(c) solvent (or fruity flavouring or perfume)
Show mark scheme and worked solution
Marking points
D1 (a) · 1 mark · Correctly names: methyl ethanoate.
D2 (b) · 1 mark · Correctly writes the structure: CH3CH2CH2COOCH2CH2CH3.
D3 (c) · 1 mark · States a valid use for esters: e.g. solvent, fragrance, flavouring.
Worked solution
a) Methyl ethanoate
b) Propanol and butanoic acid make propyl butanoate: the structural formula: CH3CH2CH2COOCH2CH2CH3
c) Use: solvent (e.g. nail polish remover) or flavouring.