Carboxylic Acids Flashcards
(10 cards)
1
Q
what is the functional group of carboxylic acids?
A
-COOH
2
Q
what is the structural formula of methanoic acid?
A
HCOOH
3
Q
what is the structural formula of ethanoic acid?
A
CH3COOH
4
Q
what is the structural formula of propanoic acid?
A
CH3CH2COOH
5
Q
what is the structural formula of butanoic acid?
A
CH3CH2CH2COOH
6
Q
what do carboxylic acids react to form?
A
salts - these end in -anoate
7
Q
how do carboxylic acids react in aqueous solutions with metal carbonates?
A
they produce salt, water and carbon dioxide
8
Q
how do aqueous carboxylic acids react with metals?
A
they produce a salt and hydrogen
9
Q
how are carboxylic acids used in the preparation of esters?
A
carboxylic acids react with alcohols in the presence of an acid catalyst to form esters
10
Q
how is vinegar made?
A
- ethanoic acid can be made by oxidising ethanol
- ethanol can also be oxidised using oxidising agents
- ethanoic acid can then be dissolved in water to make vinegar, which is used for flavouring and preserving foods
