Drawing and naming esters

4 marks · Normal

This question is about the naming of esters.

(a)

State the name of the ester formed from butanoic acid and propanol.

[1 mark]

(b)

Give the name of the alcohol used to prepare propyl methanoate.

[1 mark]

(c)

A student writes the name 'ethyl propanoate'. Write the name of its carboxylic acid component.

[1 mark]

(d)

Explain what the '-oate' part of an ester’s name represents.

[1 mark]

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) propyl butanoate

(b) propanol

(d) It comes from the carboxylic acid part of the ester.

Show mark scheme and worked solution

Marking points

A1 (a) · 1 mark · Correctly gives 'propyl butanoate'.

A2 (b) · 1 mark · Correctly gives 'propanol'.

A3 (c) · 1 mark · Correctly gives 'propanoic acid'.

B1 (d) · 1 mark · States that '-oate' comes from the acid part (or equivalent).

Worked solution

a) Propyl butanoate b) Propanol c) Propanoic acid d) The '-oate' part represents the carboxylic acid part of the ester.