Alcohols - Part 2

Question 1

How to make normal alcohols?

Answer 1

Using Fermentation (Yeast)

Question 2

What is the Word Formal for Fermentation?

Answer 2

Glucose - Ethanol + Carbon Dioxide

Question 3

What is the Symbol Formal for Fermentation?

Answer 3

C6 H12 O6 (aq) - 2C2 H5 OH (aq) + 2CO2 (g)

Question 4

What is the enzyme in Yeast?

Answer 4

Zymase

Question 5

What is the temperature of Yeast?

Answer 5

30 Degrees

Question 6

What sugars are used?

Answer 6

Plant Sugars

Question 7

How do you make Spirits?

Answer 7

Distillation of the fermented plant mixture

Question 8

What temperature does the distillation need to be?

Answer 8

78 Degrees

Question 9

How many grams of ethanol or in a unit of alcohol?

Answer 9

10g

Question 10

If top is left off on wine it…

Answer 10

Will undergo microbial oxidation and turn to ethanoic acid (Vinegar)

Question 11

Is Ethanoic Acid weak or strong acid?

Answer 11

Weak

Question 12

What can Alcohol be used as?

Answer 12

A Biofuel (Bioethanol) which is made of pure ethanol and is clean

Question 13

Why do we need to use biofuels?

Answer 13

As Crude Oil is running out and is renewable

Question 14

What can Alcohol be used as?

Answer 14

A Biofuel which is made of pure ethanol and is clean

Question 15

Why do we need to use biofuels?

Answer 15

As Crude Oil is running out

Question 16

Why can we not use them?

Answer 16

As cars would need to be changed so is expensive

Question 17

What are the conditions to achieve fermentation?

Answer 17

A temperature
Absence of Oxygen
pH between 4 to 7
30 degrees

Question 18

What are the conditions to achieve fermentation?

Answer 18

A temperature
Absence of Oxygen
pH between 4 to 7
30 degrees

Question 19

How do you obtain ethanol from the mixture?

Answer 19

1. Filtering the yeast

2. The mixture is distilled

Question 20

How do you obtain ethanol from the mixture?

Answer 20

1. Filtering the yeast

2. The mixture is distilled

Question 21

Does ethanol have a lower boiling point than water?

Answer 21

Yes which means ethanol can evaporate quicker in the flask

Question 22

What are the health problems with drinking?

Answer 22

• Liver and Kidney Failure

- Cancer

Question 23

What are the social impacts of drinking?

Answer 23

• Anti-Social behaviour

- Domestic Violence

Question 24

What are the economic impacts of drinking?

Answer 24

• Wasting emergency services time

- Tax on alcoholic drinks

Question 25

Is Ethanol a solvent?

Answer 25

Yes it does not dissolve in water

Question 26

What can ethanol be used for?

Answer 26

• Disinfectant

- Drugs and Medicines