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Chemistry > C3.6 Alcohols, Carboxylic Acids And Esters > Flashcards

C3.6 Alcohols, Carboxylic Acids And Esters Flashcards

0
Q

What the symbol for ethanol?

A

CH3CH2OH

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1
Q

Name the first 5 alcohols?

A 
Methanol
Ethanol
Propanol
Butanol
Pentanol
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2
Q

What’s the functional group of alcohols?

A

OH

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3
Q

What happens when an alcohol dissolves in water?

A

Forms a neutral solution

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4
Q

What happens with an alcohol reacts with sodium?

A

Hydrogen made

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5
Q

Uses of alcohols?

A

Volatile
Fuel
Solvent
Drink

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6
Q

Ethanol + oxygen =?

A

Ethanoic acid

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7
Q

What happens when an alcohol burns in air?

A

Water and carbon dioxide made

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8
Q

What’s the functional group of carboxylic acids?

A

COOH

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9
Q

What happens when carboxylic acids dissolve in water?

A

Acidic solution made

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10
Q

Use of carboxylic acids?

A

Vinegar

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11
Q

Carboxylic acid and carbonate makes?

A

Carbon dioxide and water

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12
Q

Carboxylic acid and alcohol makes?

A

Esters

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13
Q

What catalyst is needed to react ethanol and ethanoic acid?

A

Sulphuric acid

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14
Q

Why are carboxylic acids weaker?

A

They only slightly disassociate so there’s a lower concentration of hydrogen ions in it so less cam react

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15
Q

How can you test for an ester?

A

Add sodium and it’s the only one which won’t react

16
Q

How do you test for an alcohol?

A

Add acidified potassium dichromate amd it would go orange to green if it’s alcohol

17
Q

What’s the functional group for an ester?

A

COO

18
Q

In ethyl propanoate which is the alcohol and which is the acid?

A

First alcohol then acid

But opposite when drawn

19
Q

Properties of esters?

A

Volatile
Smell
Easy to make
Can be from natural sources

20
Q

Use of esters?

A

Perfumes

21
Q

Ethics of alcohol?

A

Health problems
Crime
Cost

22
Q

Ethics with ethanol and esters as biofuels?

A

Use land
So less food
Deforestation

Chemistry (11 decks)

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