AQA GCSE chemistry unit 8 notes

CHROMATOGRAPHY TESTS +
(UNIT 8)
Whatare pure
* substances in
chemistry? *
·
single element, compound
·nothing added to it

How do
*
you determine the purity of substance? *
·melt/boil atspecific temp.


Whatare pure substance in
* everyday life?*

nothing added into it
·




Whatare
* formulations? *
·
mixture designed for useful product


Whatare some examples
* of formulations? *
·
fuels, cleaning agents, medicine


Whatare formulations
* useful for? *
·
pharmaceutical industry

Whatare the two
* stages in paper chroma-
tography? *

·
mobile phase
stationary phase
·




Whatis the
* mobile phase? *
·
phase where molecules can more
↳State of LIQUIDIGAS