M1. Lipids_EMULSIFICATION OF FATS

Question 1

what is the objective of the EMULSIFICATION OF FATS?

Answer 1

To determine whether or not a substance has the ability to break down fats into smaller droplets and disperse them evenly in a liquid.

Question 2

1. fats are?
2. so they are?

Answer 2

1. hydrophobic
2. water-insoluble

Question 3

• substances that can reduce the surface tension between the fat and the liquid
• allows then to mix together more easily.

Answer 3

EMULSIFIERS or SURFACTANTS

Question 4

materials used in EMULSIFICATION OF FATS?

Answer 4

1. distilled water
2. coconut oil
3. sodium carbonate [Na2CO3]
4. soap solution

Question 5

first test tube contains?

Answer 5

1 mL of water + 1 drop of coconut oil

Question 6

second test tube contains?

Answer 6

1 mL of water + 1 drop of coconut oil + 1 drop of Na2CO3

Question 7

third test tube contains?

Answer 7

2 mL of water + 1 drop of coconut oil + 2-5 drops of soap solution

Question 8

first test tube results?

coconut oil is?

Answer 8

coconut oil will float on top of water

non-polar

Question 9

second test tube results?

Answer 9

intial result: mixture of 3 distinct layers

Question 10

sodium carbonate is also known as?

Answer 10

washing soda

Question 11

SODIUM CARBONATE is a highly ____ compound that can react with the fatty acid of the coconut oil to form soap

formation of

Answer 11

alkaline

soap layer on top of the water layer.

Question 12

third test tube results?

Answer 12

depends on concentration of soap solution

Question 13

high soap solution concentration may be able to emulsify the coconut oil and water into a stable emulsion, resulting in a ____.

Answer 13

homogenous mixture

Question 14

low soap concentration

Answer 14

coconut oil will form a separate layer on top of the water