Asked by dd

What is the ppm of 4.50mg of ddt in 10kg of seal fat?
Answered by DrBob222
I think I worked this problem for you about a week or so ago.
Answered by et
no that was a molarity problem
Answered by DrBob222
Here it is by FF but with you using so many screen names one never knows. As I said above, using the same screen name helps us help you and changing names helps no one.
http://www.jiskha.com/display.cgi?id=1417667658
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