Alcohol Flashcards
1
Q
Molecular Formula for Ethanol
A
C2H5OH
2
Q
What are the two process’ when preparing Ethanol
A
- Fermentation
- Hydration
3
Q
Equation for Fermentation =
A
Sugar + water –(yeast 37) –> Alcohol + Carbon dioxide
4
Q
Positives of Fermentation
A
- Cheap
- Renewable
- Only needs low temperature
5
Q
Negatives of Fermentation
A
- produces low concentration of alcohol
- Needs purified to remove un-reacted sugar
- Produces CO2
- Yeast needs replacing
6
Q
Equation for Hydration of Ethene
A
Ethene + Steam (H20) –(catalyst 200-300)–> Ethanol
7
Q
Positives of Hydration
A
- Cheap
- High concentrated alcohol produced
- Extends shelf life of food
- Reduces cost to manufacturer
8
Q
Negatives of Hydration
A
- Non renewable as ethene comes from oil
- Its unhealthy in food
9
Q
What is hydration
A
Turns unsaturated fats into saturated fats
10
Q
Why do we use hydration
A
To make saturated fats which are more useful
