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PARTS PER MILLION

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(1) Parts per million is the mass or volume of a solute in gram or `cm^(3)` per `10^(6)` gram or `10^(6)cm^(3)` of the solution.
Parts per million (ppm)
`=("mass (or Volume ) or a solute "xx10^(6))/("total mass (or total volume) of the solution")`
(2) Concentration in ppm can also be expressed as mass of mass, volume to volume and mass to volume.
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