carboxylic acids & properties Flashcards
1
Q
what is the functional group of a carboxylic acid?
A
COOH
- C = O
- C - O - H
2
Q
describe how carboxylic acids are named
A
- count longest carbon chain
- the COOH is always C1
- number any side chains
- multiple = di,tri,tetra
3
Q
why are carboxylic acids soluble in water?
A
they are able to form hydrogen bonds with water molecules due to the presence of lone pairs on the O and OH
4
Q
what is meant by ‘miscible’
A
can dissolve
5
Q
which carboxylic acids are fully miscible and why?
A
meth-butanoic acid
- beyond this, the carbon chains become too long which decreases their ability to H bond with water
6
Q
describe the hydrogen bonding between a water molecule and carboxylic acid
A
- hydrogen bond between double bond O lone pair and H of water
- dipoles on water molecule and O of carboxylic
7
Q
why are carboxylic acids considered a weak acid?
A
they donate protons
