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Chemistry🧪 > Organic Chemistry- Alcohol > Flashcards

Organic Chemistry- Alcohol Flashcards

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1
Q

What are the two different ways to prepare ethanol?

A

Fermentation
Hydration of ethene

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2
Q

What are the reagents of fermentation?

A

Glucose
Yeast

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3
Q

What are the conditions of fermentation?

A

30-40
Aqueous
Anaerobic

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4
Q

What is the equation for fermentation?

A

C6H12O6-> 2C2H5OH + 2CO

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5
Q

What are the disadvantages of fermentation over the hydration of ethene?

A

Batch process
Not 100% atom economy
Impure
Very slow

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6
Q

Define a biofuel

A

A fuel derived from a renewable biological source

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7
Q

What is the test for a carboxylic acid?

A

Add sodium carbonate
Positive result- Carboxylate salt

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8
Q

General formula of alcohols

A

CnH2n+1OH

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9
Q

What is the functional group of alcohols?

A

R-OH

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10
Q

What is a primary alcohol?

A

An alcohol that has 1 R group attached to the central C

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11
Q

What is a secondary alcohol?

A

An alcohol that has 2 R groups attached to the central C

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12
Q

What is a tertiary alcohol?

A

An alcohol that has 3 R groups attached to the central C

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13
Q

What are the functional group isomers of alcohols? (ethanol)

A

Ethers
ethoxyethane

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14
Q

What type of bonds exist between alcohols?

A

Hydrogen bonding

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15
Q

What is a carbon neutral fuel?

A

A fuel that uses the same amount of CO2 from the atmosphere than releases back into the atmosphere

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16
Q

What is the argument that fermentation is carbon neutral?

A

6CO2 + 6H2O -> C6H12O6 + 6O2
C6H12O6 -> 2C2H5OH + 2CO2
2C2H5OH + 6O2 -> 4CO2 + 6H2O

17
Q

Why is fermentation not carbon neutral?

A

Fossil fuels are needed to power the machinery, fertilise the crop, harvest eh crop

18
Q

What is the disadvantages to the use of crops for the production of fuel?

A

Deforestation
Land use to grow crops cant be used to grow food
Loss of habitat

19
Q
A

Chemistry🧪 (15 decks)

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