2.1b Fats & Oils

Question 1

Why are fats & oils essential parts of our diet

Answer 1

They’re a more concentrated source of energy than carbohydrates

Question 2

What is a “Fatty Acid”?

Answer 2

A long chain carboxylic acid

Question 3

Equation for forming Fats/Oils

Answer 3

Glycerol + Fatty Acids —> Fat OR Oil + water

Question 4

What type of reaction occurs?

Answer 4

Condensation

Question 5

What class of compounds are Fats & Oils?

Answer 5

Esters

Question 6

Systematic name for glycerol?

Answer 6

Propan-1,2,3-triol

Question 7

What ratio of glycerol:Fatty Acid is used?

Answer 7

1:3

Question 8

Fats v Oils

Answer 8

Solid fats are Saturated
Liquid oils are Unsaturated

Question 9

General formulas for (un)saturated molecules

Answer 9

Saturated: CnH2n+1
Unsaturated: CnH2n-x

Question 10

Melting Points

Answer 10

Fats are solid at room temperature
Oils are liquid at room temp

Question 11

Equation for a “Fardened Fat”

Answer 11

Oils + H2 —> “Hardened Fat”

This is Hydrogenation

Question 12

Equations

Answer 12

Glycerol + Fatty Acid <—> Fat or Oil + Water

Condensation —>
Hydrolysis <—