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Question

Scientists can learn a great deal about a community's drug use (both legal and illegal) by analyzing the contaminants in wastewater. In a recent study in New York State, chemists measured the concentration of cotinine, a derivative of nicotine that is produced in the liver and excreted in the urine of tobacco users. The chemists found the average cotinine concentrations in the wastewater stream was \( 1.43 \mu \mathrm{g} / \mathrm{L} \). a b Cotinine is slightly soluble in water. Using the structure of cotinine, identify any polar covalent bonds that are present in this substance. C-C \( \mathrm{C}-\mathrm{N} \) \( \mathrm{C}-\mathrm{H} \) \( \mathrm{C}-\mathrm{O} \)

          Scientists can learn a great deal about a community's drug use (both legal and illegal) by analyzing the contaminants in wastewater. In a recent study in New York State, chemists measured the concentration of cotinine, a derivative of nicotine that is produced in the liver and excreted in the urine of tobacco users. The chemists found the average cotinine concentrations in the wastewater stream was \( 1.43 \mu \mathrm{g} / \mathrm{L} \).
a
b
Cotinine is slightly soluble in water. Using the structure of cotinine, identify any polar covalent bonds that are present in this substance.
C-C
\( \mathrm{C}-\mathrm{N} \)
\( \mathrm{C}-\mathrm{H} \)
\( \mathrm{C}-\mathrm{O} \)

Scientists can learn a great deal about a community's drug use (both legal and illegal) by analyzing the contaminants in wastewater. In a recent study in New York State, chemists measured the concentration of cotinine, a derivative of nicotine that is produced in the liver and excreted in the urine of tobacco users. The chemists found the average cotinine concentrations in the wastewater stream was 1.43 μg / L.
a
b
Cotinine is slightly soluble in water. Using the structure of cotinine, identify any polar covalent bonds that are present in this substance.
C-C
C-N
C-H
C-O

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