Calculating Protein Concentration
(by pow.joshi from gmail.com)
Thu Jan 24 20:07:59 EST 2008
On 24/01/2008, Tom Anderson <ucgatan from ucl.ac.uk> wrote:
> On Tue, 22 Jan 2008, Pow Joshi wrote:
> > On 22/01/2008, Tom Anderson <ucgatan from ucl.ac.uk> wrote:
> > > On Mon, 21 Jan 2008, Jayakumar, R wrote:
> > >
> > > > Finally you could not have solved the question by treating it like
> > > > Sodium chloride unless otherwise you had known the relation between
> > > > dalton, carbon's molar mass and mole.
> > >
> > > Where does carbon's molar mass come into it?
> > ...because, one Dalton is defined as 1/12th the mass of carbon-12....
> > too, is basic chemistry...
> True, of course. But you don't need to know that to solve the problem -
> you just need to know that a dalton is a gram per mole. That the mole in
> question is strictly carbon-12 baryons (plus a corresponding share of an
> electron cloud) is, for this purpose, unimportant. I'm assuming that
> "treating it like sodium chloride" implies knowing the mole - dalton -
> gram relationship, even if not the precise origin of the definition.
Ah, so, your objection is to the resurrection of what was happily
forgotten, deeply buried carbon part of the good Dalton .....
> Tom Anderson, MRC Laboratory for Molecular Cell Biology, UCL, London WC1E
> (t) +44 (20) 76797264 (f) +44 (20) 76797805 (e)
> thomas.anderson from ucl.ac.uk
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