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Edexcel IGCSE Chemistry > unit 1B chromatography > Flashcards

unit 1B chromatography Flashcards

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1
Q

what is paper chromography ?

A

it is used to separate mixtures of soluble substance

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2
Q

what is the mobile phase in this experiment ?

A

solvent

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3
Q

what is the secondary phase in the experiment ?

A

the paper

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4
Q

what is paper chromatogram used for?

A

identify substances by comparing them with known substances.

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5
Q

what is the RF value?

A

RF value = distacne travelled by the substance / distance travelled by the solvent

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Edexcel IGCSE Chemistry (8 decks)

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