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16. A 100mL strema water sample contains 83 ug of DDT. what is the concentraion in ppm? 17. What mass of Pb is contained in

16. A 100mL strema water sample contains 83 ug of DDT. what is the concentraion in ppm?
17. What mass of Pb is contained in a 100mL water sample that has a Pb concentration of 13,259 ppb?
18. A 50.0 mL sample of individual wastewater was determindes to contain 0.48 mg of mecury. A. Express the mercuy concentration of the wastewater in ppm and ppb units.
B. which unit is more appropriate?
C. Derive a conversion for coverting between ppm and ppb. image text in transcribed
16. A 100mL stream water sample contains 83g of DDT. What is the concentration in ppm? 17. What mass of Pb is contained in a 100mL water sample that has a Pb concentration of 13,259ppb ? 18. A 50.0-mL sample of industrial wastewater was determined to contain 0.48mg of mercury. a. Express the mercury concentration of the wastewater in ppm and ppb units

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