Which measure of concentration is best used when working with small concentrations?

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Which measure of concentration is best used when working with small concentrations?

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Answer 1 · 2016-07-09T19:40:42

Perhaps #"ppm"#, #"parts per million"#?

Explanation:

#"1 ppm"# in aqueous solution #=# #1*mg*"solute per litre of solution"#. At these concentrations, we really do not have to bother about considerations of density.

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Which measure of concentration is best used when working with small concentrations?

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