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chemistry unit 2 > everyday consumer products 2.2 > Flashcards

everyday consumer products 2.2 Flashcards

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1
Q

calculate energy change

A

Eh=cm(delta)T

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2
Q

what number is c in energy change

A

4.18

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3
Q

what do alcohols contain

A

carbon, hydrogen and oxygen

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4
Q

general formula for alcohols

A

CnH2n+1OH

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5
Q

functional group of alcohols

A

hydroxyl

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6
Q

alcohol functional group structure

A

-OH

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7
Q

uses of alcohols

A

fuels and cleaning

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8
Q

trends in alcohols

A
  • as carbon chain length increases solubility decreases

- melting and boiling points increase as the molecule have stronger intermolecular forces

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9
Q

carboxylic acid general formula

A

CnH2n+1COOH

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10
Q

functional group for carboxylic acids

A

carboxyl

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11
Q

carboxylic acid functional group structure

A

C=O
|
O-H

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12
Q

uses of carboxylic acids

A

preservatives, soaps and medicine

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13
Q

trends in carboxylic acids

A
  • as carbon chain length increases solubility decreases

- melting and boiling points increase as the molecule have stronger intermolecular forces

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14
Q

carboxylic acids are insoluble after…

A

propanoic acid

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15
Q

dilute ethanioc acid is…

A

vinegar

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16
Q

how to recognise carboxylic acids

A

unpleasant smell or taste

17
Q

name 4 alcohols

A

methanol, ethanol, propanol, butanol, pentanol, hexanol, heptanol and octanol

18
Q

chemical formula for butanol

A

C4H9OH

19
Q

shortened formula for pentanol

A

CH3CH2CH2CH2CH2OH

20
Q

name 3 carboxylic acids

A

methanoic acid, ethanoic acid, propanoic acid, butanoic acid, pentanoic acid, hexanoic acid, heptanoic acid and octanoic acid

21
Q

chemical formula for pentanoic acid

A

C5H11COOH

22
Q

shortened structure formula for propanoic acid

A

CH3CH2COOH

chemistry unit 2 (3 decks)

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