Re: [MedievalSawdust] Molar Ratio
- this is a point.
On 1/7/07, Avery Austringer <avery1415@...> wrote:
> >for a solution, its likely a molar percentage. ie, not weight, actual
> >number of particles.
> I suspect not for a couple reasons.
> The molar weight of linseed oil is probably not very well defined and
> may be subject to massive variation. All antibodies, for example,
> weigh more or less the same (and they come with something called a
> hypervariable region which you'd think would noise things up more than
> it does), but things like lipids can be all over the road.
> Also, and this is an extreme to the point of goofy example but the
> messy math would carry for anything with a signifigantly different
> molecular weight that water, imagine we "diluted" a solution of
> diamonds by dropping one 18g diamond into 18 mL of water. Molarity wise
> that's 0.0000000000000000000033% solution, but by doubling the amount
> of diamond in our 36g we would have a 100% solution.
> In my experience when you get to big things like SDS, Tween or
> proteins, molarity goes right out the window unless you are doing
> things where it really matters, like labeling antibodies for analytical
That which yields isn't always weak.