Enos29 wrote...
So long.. =_=
*hugs himitsu*
[color=#993300]Did I mention I'm in Florida?
xhimitsu wrote...
I kind of need to since that is what I'm going to talk about in my exam! ><
[color=#993300]
Filling up a column:
Top: Sand
Silica (lots of it)
Sand
Bottom: Cotton to prevent sand and silica from getting out.
The fundamental principle when a column runs is the differing polarities of the compounds being filtered. Because of this, different compounds have different speeds as they move through the silica, causing them to separate from other compounds and clump together