> > From: Bob Shell <[EMAIL PROTECTED]> > Date: 2007/02/10 Sat PM 06:51:15 GMT > To: Pentax-Discuss Mail List <[email protected]> > Subject: Re: Obscure unit conversions > > > On Feb 10, 2007, at 1:33 PM, Mishka wrote: > > > moles is as common as it gets. that's molecular mass/L > > So, for example, if the paper says 1225 nM concentration, I have to > know the molecular mass of the substance to know how many mg/L that > converts to? That seems awfully complicated to me.
Exactly. The molecular mass dissolved and made up to 1litre, = a 1molar solution. In this case 1.225x the MM will give you a litre of solution. Divide or multiply to give you the volume required. The MM is usually on the bottle but you will almost certainly be able to look it up online. > I'm not a chemist!!!! I'm just trying to figure out what these guys > are saying in units that mean something to me. So don't do chemistry. 8-) ----------------------------------------- Email sent from www.virginmedia.com/email Virus-checked using McAfee(R) Software and scanned for spam -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net
