Chemistry, 21.02.2020 20:37, oaaliyah505

Please i have an exam monday and i dont know how to answer it help. ( A 250.0-mL aqueous solution contains 45.1 mg of a pesticide Express the pesticide's concentration in weight percent, parts per million, and parts per billion.)

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Please i have an exam monday and i dont know how to answer it help. ( A 250.0-mL aqueous solution c...