Organic Chemistry - Esters (Paper 2)
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what functional group do esters contain?
-COO-
what is ethyl ethanoate?
the ester produced when ethanol and ethanoic acid react in the presence of an acid catalyst this reaction is called esterification ethanoic acid + ethanol ⇋ ethyl ethanoate + water
what properties make esters useful in perfumes?
esters are volatile compounds with distinctive smells. a volatile liquid is one that turns into to a vapour easily esters are often described as having a sweet, fruity smell
how would you prepare a sample of an ester such as ethyl ethanoate?
• heating a mixture of ethanoic acid and ethanol produces a liquid called ethyl ethanoate • a few drops of concentrated sulfuric acid must be added for the reaction to work • the sulfuric acid acts as a catalyst.