Carboxylic acids
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Carboxylic acids are made from…
Reacting an alcohol with an oxidising agent
Carboxylic acids all have the same __, making them a __
Functional group
Homologous series
What is the functional group for carboxylic acids?
A carbon double bonded to an oxygen. The carbon is also single bonded to an oxygen which is single bonded to a hydrogen.
What are the 3 reactions/processes to know?
Dissolving in water
Reacting with metal carbonates
Reacting with alcohols
Carboxylic acids are __ in water
Soluble
What is formed when a carboxylic acid dissolves in water?
H+ ions. This means they have ionised.
What happens to the pH of the solution?
It becomes weakly acidic.
What is the formula for a carboxylic acid reacting with a metal carbonate?
Carboxylic acid + metal carbonate = salt + carbon dioxide + water
Ethanoic acid + sodium carbonate =
Sodium ethanoate + carbon dioxide + water
Propanoic acid + potassium carbonate =
Potassium propanoate + carbon dioxide + water
What is the formula for a carboxylic acid reacting with an alcohol?
Carboxylic acid + alcohol = ester + water
Ethanoic acid + ethanol =
Ethyl ethanoate + water
What is needed for a carboxylic acid to react with an alcohol?
Sulfuric acid catalyst
Note 
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