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N5 Chemistry > Applications of Organics > Flashcards

Applications of Organics Flashcards

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1
Q

Why are alcohols used as fuels?

A

Because they are highly flammable and burn with very clean flames

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2
Q

What is the solubility of alcohols

A

The first 3 are very miscible in water but solubility decreases with size. Alcohols are common solvents

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3
Q

What is the alcohols functional group?

A

The hydroxyl branch - OH

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4
Q

What is the general formula for alcohols

A

CnH2n +1OH

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5
Q

What is the 1st alcohol

A

methanol

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6
Q

what is the 2nd alcohol

A

ethanol

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7
Q

3rd alcohol

A

propanol

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8
Q

4th alcohol

A

butanol

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9
Q

pentanol

A

5th alcohol

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10
Q

hexanol

A

6th alcohol

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11
Q

what is the 7th alcohol

A

heptanol

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12
Q

octanol

A

8th alcohol

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13
Q

What is the formula for calculating energy released?

A

Eh=cmΔt

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14
Q

What is the carboxyl functional group

A

COOH

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15
Q

what is the general formula for carboxylic acids

A

CnH2n + COOH

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16
Q

4th carboxylic acid

A

butanoic acid

17
Q

What are plastics made from?

A

Most plastics and synthetic materials are made from oil

18
Q

What is a synthetic material

A

a man - made material

19
Q

Give 3 advantages of plastics

A

-Durability
-Cheap
-Can be mass produced

20
Q

3 disadvantages of plastics

A

-not biodegradable
- non-renewable
-polluting

21
Q

3 uses of plastics

A

PVC - window frames
Polyester - clothing
Polystyrene - packaging

22
Q

Define biodegradable

A

able to naturally decompose

23
Q

Give an example of a polymer

A

plastics

24
Q

Define polymer

A

a very long molecule formed by the joining of mayn shorter molecules called monomers

25
Q

Define monomer

A

the smaller, unsaturated molecules that join to form longer saturated polymers.

26
Q

Define repeating unit

A

the part of the polymer whose repetition would result in a complete polymer chain

27
Q

Define addition polymerisation

A

The name given to the chemical reaction where many monomers are joined to form a polymer

28
Q

What is an exothermic reaction

A

A reaction or process that releases heat energy

29
Q

Endothermic

A

A reaction or process that takes in heat energy

N5 Chemistry (1 decks)

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