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Sophie's cards > Chemistry Keywords > Flashcards

Chemistry Keywords Flashcards

1
Q

What is Atomic absorbtion spectroscopy used for ?

A

Detecting concentration of a particular metal in solution.

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2
Q

What is infrared spectrometry used for ?

A

Find the different bonds , e.g C=C in ethane or O-H in ethanol.

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3
Q

what is Ultraviolet spectroscopy used for ?

A

Find the concentration of the substance by finding how much light is absorbed.

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4
Q

what is Nuclear magnetic resonance spectroscopy used for

A

Tell us how the atoms are arranged in a molecule , so tells us the structure. So we can tell the differance between ethanol and ethanal.

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5
Q

what is Chromatography used for ?

A

Gas - liquid seperate compunds that are easily vapourised (e.g distilled water, ethyl alcohol, essential lavender oil, essential bergamot oil.

gel permeaton, seperating according to the molecule size ( e.g methanol, ethanol, propanol, butanol, etc) Ion-exchange seperate compounds containing different charged particles (e.g Iron (ii) chloride and iron (iii) chloride)
High performance separate compounds in solution

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6
Q

what is Mass Spectroscopy used for ?

A

find the relative atomic mass of an atom.

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7
Q

Describe the flame test

A

The metal salt or other compound is mixed with concentrated hydrochloric acid and a sample of the mixture is heated strongly in a bunsen flame on the end of a cleaned nichrome wire

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8
Q

Describe the NaOH test

A

dilute sodium hydroxide (NaOH) solution is added to a solution containing the suspected ion.

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9
Q

Describe the Litmus paper test

A

ammonia: damp red litmus

ammonium ion. smelly ammonia released and red litmus turns blue.

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10
Q

Describe the Action of acid

A

add acid to carbonate and buuble gas through limewater.

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11
Q

Describe the Decomposition reaction

A

Heat carbonate and bubble gas through limewater.

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12
Q

Describe the silver nitrate test

A

add dilute nitric acid and silver nitrate solution. The silver nitrate is acidified with dilute nitrate acid to prevent the precipiation of other non - halide silver salts.

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13
Q

Describe BaCl2 / HCi

A

A white precipate of barium sulfate

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14
Q

Describe Al powder / NaOH

A

Add COLD sodium hydroxide solution and Al powder to the suspected ammonium salt and test any gas above the solution with red litmus.

smelly ammonia released ! and litmus turns blue .

YOU GO GIRL ;)

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15
Q

Describe Saturation unsaturation

A

Bubble gas through, or add liquid to a solution of bromine water. The orange/brown bromine rapidly decolourises, as a saturated colourless organic bromocompound is formed.

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16
Q

Describe Indicator

A 
Methyl Orange
Strong acid and weak base
Phenolphthalein
Weak acid and strong base and indicator 
Strong acid and strong base
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17
Q

Whats the result of the flame test with barium

A

yellowish/apple green

18
Q

Whats the result of the flame test with lithium

A

crimson

19
Q

Whats the result of the flame test with potassium

A

lilac

20
Q

Whats the result of the flame test with sodium

A

yellow, slightly orange

21
Q

Whats the result of the flame test with calcium

A

brick red

22
Q

Whats the result of the flame test with copper

A

green

23
Q

Whats the result of the NaOH test with calcium

A

white precipitate

24
Q

Whats the result of the NaOH test with copper (II)

A

blue precipitate

25
Q

Whats the result of the NaOH test with iron (II)

A

dark green precipitate

26
Q

Whats the result of the NaOH test with iron (III)

A

brown precipitate

27
Q

Whats the result of the NaOH test with aluminium

A

white precipitate

28
Q

Whats the result of the NaOH test with magnesium

A

white precipitate

29
Q

Whats the result of the litmus test with ammonium NH4*

A

red litmus turns blue

30
Q

Whats the result of the litmus test with ammonia gas

A

litmus turns blue

31
Q

Whats the result of the action of acid with carbonates

A

Fizzes

32
Q

Whats the result of the action of acid with copper carbonate

A

Blue solution, co2 gas evolved (limewater = milky)

33
Q

Whats the result of the action of acid with zinc carbonate

A

colourless solution, co2 gas evolved (limewater = milky)

34
Q

Whats the result of the Decompostition reaction with copper carbonate

A

Black solid co2 gas evolved (limewater = milky)

35
Q

Whats the result of the Decompostition reaction with zinc carbonate

A

yellow solid turns white on cooling , co2 gas evolved (limewater = milky)

36
Q

Whats the result of the silver nitrate test with chloride

A

white precipitate

37
Q

Whats the result of the silver nitrate test with Bromide

A

cream precipitate

38
Q

Whats the result of the silver nitrate test with iodide

A

yellow precipitate

39
Q

Whats the result of the BaCl2 / HCl reaction with sulfate

A

white precipitate

40
Q

Whats the result of the Al powder/NaOH with Nitrate test

A

forms ammonia litmus turns blue

41
Q

Whats the result of Burning with organic compounds

A

burn or gets charred

Sophie's cards (1 decks)

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