What is the concentration in parts per million of DDT in the tissues of a seabird that contains 50. mg of DDT in 1,900 g of tissue? DDT, a nonbiodegradable pesticide that is a persistent environmental pollutant, has been banned from use in the United States since 1973.
Analysis
Use the formula ppm = (g of solute)/(g of solution) × $10^{6}$ .

Question

What is the concentration in parts per million of DDT in the tissues of a seabird that contains 50. mg of DDT in 1,900 g of tissue? DDT, a nonbiodegradable pesticide that is a persistent environmental pollutant, has been banned from use in the United States since 1973.
Analysis
Use the formula ppm = (g of solute)/(g of solution) × [latex]10^{6}[/latex].

Accepted Answer

[1] Convert milligrams of DDT to grams of DDT so that both the solute and solution have the same unit.

[2] Use the formula to calculate parts per million.

Question 7.sp.6: What is the concentration in parts per million of DDT in the...

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