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C3.6 Alcohols, carboxylic acids and esters
Can you…?
C3.6.1 Alcohols
Identify alcohols from their functional group –OH, and name the first three
members of the homologous series of alcohols
Represent the
structures of
alcohols in the
following forms:
Describe some of the properties of methanol, ethanol and propanol,
including: dissolving in water; reactions with sodium; burning in air; use as
fuels, solvents and (in the case of ethanol) in alcoholic drinks
Describe how ethanol can be oxidised to form ethanoic acid either by
chemical oxidising agents or microbial action
C3.6.2 Carboxylic acids
Identify carboxylic acids from their functional group –OOH
Represent the
structures of
carboxylic acids in
the following forms:
State that ethanoic acid is the main acid in vinegar
Describe the chemical behaviour of carboxylic acids when dissolving in
water, reacting with carbonates, and reacting with alcohols in the presence
of an acid catalyst
(HT) Explain why carboxylic acids are described as weak acids, in terms of
the degree that they ionise when dissolved in water
(HT) Compare the pH values of aqueous solutions of weak and strong acids
of equal concentrations
C3.6.3 Esters
Identify esters from the functional group –COO–
Identify ethyl ethanoate as the ester produced from ethanol and ethanoic
acid
Explain why esters are often used as flavourings and in perfumes
Evaluate the social and economic advantages and disadvantages of the uses
of alcohols, carboxylic acids and esters. You may be given information and
data for comparison and evaluation
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