Questions and answers on how to convert things from one unit or system to another
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Tue Aug 09, 2005 10:40 pm
hi all,
I have recently received results from an analysis of some sea water i had collected. The results were for the TOTAL dissolved nitrogen in the samples, ( organic and inorganic ) and were given in micromolar concentrations, um. For example sample1a=738uM=738x10-6M
how do i go about converting these into mass/volume, ie mg/L?
edit: just checked the raw data, and the column is labelled as follows:
TDN con (µM)
713.4
723.6
etc
so i take it thats a concentration as in µMol/dm3. Would I just need to multiply by 14 ( Mr of N ) to convert into grams?
Sun Aug 12, 2007 2:53 am
Chemists are lax about stating the units. It means micromoles per liter with the liter being left out. So it is 14*738 *10-6 g/liter
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