Drawing and naming esters
2 marks · EasyAn ester is made from butanoic acid and methanol.
(a)[1 mark]
State the name of the ester formed.
(b)[1 mark]
How many carbon atoms are there in the ester molecule?
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(a) Methyl butanoate
(b) 5
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Marking points
C1 (a) · 1 mark · Correctly states: methyl butanoate.
C2 (b) · 1 mark · Correctly counts the total number of carbon atoms: 5.
Worked solution
a) The ester is called methyl butanoate (from methanol and butanoic acid).
b) The ester has 4 carbons (butanoic acid) + 1 (methanol) = 5 in total.