8. A 250.0 mL aqueous solution contains 45.1 pg of a pesticide. Express the pesticide's concentration in weight percent, in parts per million, and in parts pe billion.

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Problem 12.138QP: An aqueous solution is 20.0% by mass of sodium thiosulfate pentahydrate, Na2S2O35H2O. What is the...
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8. A 250.0 ml. aqueous solution contains 45.1 pg of a pesticide. Express the
pesticide's concentration in weight percent, in parts per million, and in parts pe
billion.
Transcribed Image Text:8. A 250.0 ml. aqueous solution contains 45.1 pg of a pesticide. Express the pesticide's concentration in weight percent, in parts per million, and in parts pe billion.
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