1
Q
What determines how far mixtures separate?
A
Their solublility to the mobile phase or their retention time to the stationary phase.
2
Q
How do you indentify colourless chemicals in chromatography?
A
Using UV light
Ninhydrin - amino acids
Iodine vapour
3
Q
What is TLC?
A
A plate is coated in solid silica or alumina.
4
Q
How does collum chromatography work?
When to use?
A
Packing collum with absorbent material eg. aluminium oxide.
A Level Chemistry
flashcards
Decks in class (27)
# Cards
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Topic 1 - Atomic Structure30
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Flagging test year 1214
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Topic 2 - Bonding55
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Shapes of Molecules + Maxwell - Boltzman Curves15
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ORGANIC70
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Topic 8 + 10 - energetics and equilibria15
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Group 7 - Halogens and Redox24
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Group 2 and testing for aqueous cations and anions13
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Equilibria13
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Topic 3 - Amount of substance7
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Topic 4 - Kinetics6
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Periodicity6
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Carbonyls18
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Polymers and Biological Molecules29
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Electrochemistry26
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Thermodynamics36
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Organic Synthesis22
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Transition metals49
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Rate Equations17
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Gas equilibria -Kp7
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Amines6
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Acids and Bases32
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Aromatic Compounds7
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Chromatography4
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Properties of Period 3 Elements and their Oxides22
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Inorganic Catalysts12
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Reactions of Ions in Aqueous Solution21
