Chemistry, 11.12.2021 19:40 Darkknighta26
Cocaine, C17H21NO4, in urine can be confirmed by mass spectroscopy at a concentration of 150 ng/mL. Assuming a urine density of 1.025 g/mL, what is this concentration expressed as molality?
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Cocaine, C17H21NO4, in urine can be confirmed by mass spectroscopy at a concentration of 150 ng/mL....
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