What is the concentration of a solution, in parts per million, if 0.02 gram of #Na_3PO_4# is dissolved?

1 Answer
anor277
Apr 28, 2016

#1# #"ppm"# #=# #1*mg*L^-1#. You have not given us a volume

Explanation:

A #"ppm"# is so called because #1# #L# of water has a mass of #1# #kg#, i.e. #10^6# #mg#.

So if you have #0.020# #g#, you have #20xx10^-3*g#, that is #20# #mg# or (!!IF THERE IS ONE LITRE OF SOLUTION!!) #20# #"ppm"#.

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