C7: ALCOHOLS AND CARBOXYLIC ACIDS Flashcards
1
Q
How are alcohols made?
A
when an alkene reacts with H2O
2
Q
What are the 2 ways in which ethanol can be made?
A
-fermentation of yeast: glucose –> ethanol + carbon dioxide (requires anaerobic conditions)
-steam (H2O): ethene + H2O –> ethanol (requires high temp and phosphoric catalyst)
3
Q
What are the uses of alcohols?
A
-alcoholic drinks
-solvent
-fuel
4
Q
What is formed when alcohols bond with oxygen?
A
a carboxylic acid
(eg: ethanol + oxygen —> ethanoic acid)
5
Q
Are carboxylic acids weak or strong acids?
A
weak acids
6
Q
Alcohol + carboxylic acid —> _____ + ____
A
alcohol + carboxylic acid —> ester + water
7
Q
What does making an ester require?
A
a sulfuric acid catalyst
8
Q
What are properties of esters?
A
-volatile (evaporate easily)
-sweet scent
