1. 7.6 Structure of Fats and Oils
Ester Molecule
LO: I know that fats and oils are esters.

2. The alcohol used to make fats and oils is .
glycerol
Molecular formula:
C3H8O3
Glycerol has 3 hydroxyl groups and so can form 3
links with 3 carboxylic acids.
ester
The carboxylic acids used to make fats and oils are called acids.
fatty
LO: I know that fats and oils are esters.

3. 7.6.2 Fatty Acids
LO: I know the structure of some fatty acids.

4. Fatty acids can be saturated or unsaturated:
Stearic acid, C17H35COOH ( )
saturated
Oleic acid, C17H33COOH ( )
unsaturated
There must be at least 2 hydrogens for every one carbon if the fatty acid is
saturated
LO: I know the structure of some fatty acids.

5. 7.6.3 Hardening Oils
LO: I understand the process of hardening oils.

6. hydrogenating hydrogen margarine
Hardening an oil means it to make it less unsaturated, increasing its melting point.
hydrogenating
In the process, some of the double bonds undergo addition of :
hydrogen +
H—H
This is what happens in the manufacture of
from vegetable oil.
margarine
LO: I understand the process of hardening oils.