Soaps

Question 1

Name a soap

Answer 1

Sodium Stearate

Question 2

How can we use soaps?

And why over water?

Answer 2

Can be used to remove fats or oils greasy stains from foods. Since fats and oils are non polar they don’t dissolve in water instead soap is required

Question 3

Describe the:
covalent hydrocarbon chain
Ionic head

Answer 3

Hydrophobic (non polar)

Hydrophillc. (Polar)

Question 4

Describe soap at work

Answer 4

Hydrocarbon chain bonds easily to greasy stains (hydrophobic) it covers the grease in negative charges causing the grease to separate and become water soluble

Question 5

Describe detergents

Answer 5

Soap like structures which don’t form scummy precipitates as they have different polar heads from soaps

Question 6

Describe emulsifiers

Answer 6

Used to keep water soluble and oil soluble compounds together. They are widely used in food industry and have a non polar and polar part leading to flexible solubilities

Question 7

What are soaps

Answer 7

Fatty acid salts formed from the alkaline hydrolysis of fats or oils

Question 8

What are emulsions

Answer 8

Liquid which contains droplets if another liquid