The concentration of many pesticides and toxins in the environment are given in units of ppm (parts-per-million-by-mass)

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The Concentration Of Many Pesticides And Toxins In The Environment Are Given In Units Of Ppm Parts Per Million By Mass 1 (18.95 KiB) Viewed 47 times

The concentration of many pesticides and toxins in the environment are given in units of ppm (parts-per-million-by-mass). This unit is the same as saying the mass fraction of something that is 1ppm is 1×10−6 g material per gram of solution. A liter of river water is collected and chemical analysis determines the concentration of lindane, a pesticide with chemical formula C6​H6​Cl6​, is 1.5×10−3ppm. How many grams of lindane are in a liter of river water? What is the concentration of lindane in moles/L (M) ? You can assume that the density of the water is 1.00 g/mL