How do we determine molar concentrations from concentrations that are reported in #"ppm"#?

1 Answer
Dec 15, 2016

Answer:

#"1 ppm"# #=# #1*mg*L^-1#

Explanation:

When we deal in #"ppm"# concentrations, typically the solute is so dilute, that the density of the solution does not change very much from that of water, i.e. #1*g*mL^-1#.

Now your solution was prepared by taking a volume of solute, and dissolving this in another volume of solvent. Was it water? I don't know. And thus we cannot address your question; there are insufficient data.