Chemistry exam tomorrow 9/06/2015 c2Watch
It's c1 by the way, and i have no clue, some say it might about tje early life of the universe but i thought that was physics... Sorry i'm useless at chemistry but if you revise everything your be fine! Best of luck tomoz
I betting chromatography too....how is the experiment set out? and what do you write about if they give youa chromatagrom to analyse ?
Uses: maybe a possible question
> police are able to analyse samples of DNA to find suspects
.>analyse paints and dyes so that museums are able to mix exact copies of old paints and restore old paintings.
>used for food standards to see if dyes in food are safe to consume.
You may also be asked about the Rf value this is the distance moved by the compound divided by the distance moved by the solvent This is what the equation looks like remember it:
Distance moved by compound
-----------------------–-------------- = Rf value
Distance moved by solvent
Hope this helps
i've got a feeling (and i was right for all additional science papers) that the six marker will either be on cracking or fractional distillation. they've never been thoroughly tested as far as i'm aware for aqa x