Understanding PPM Concentrations: Get Answers Here

[Master J]

I'm trying to get my head around the ppm concentration method. What is the conc. of 9.5mL of a 50 ppm aqueous solution? Is it still 50 ppm?

Im physics trained, so I'd rather see concentrations in SI units!

Any help appreciated.

 

[Borek]

Since when any kind of concentration can depend on volume of the sample?

It is almost like asking "if I have 9.5 mL of 100 deg F water, does it still have 100 deg F"?

Do you know what is the difference between intensive and extensive properties?

Honestly - I don't understand how someone can claim to be physics trained and not understand such a basic concept.

And what do you mean by "ppm concentration METHOD"?