Question
A doctor orders $15.0 \mathrm{mg}$ of codeine. The cough syrup contains codeine at a concentration of $3 . \mathrm{mg}$ per $1 . \mathrm{mL}$. How many $\mathrm{mL}$ of cough syrup should be administered to the patient?
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The doctor orders 15 mg of codeine and the cough syrup contains 3 mg of codeine per 1 mL. Show more…
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A standard dose of an over-the-counter cough suppressant for adults is $20.0 \mathrm{mL}$ A portion this size contains 35 mg of the active pharmaceutical ingredient (API). A pediatrician prescribes the drug for a 6 -year-old child, but the child may take only $10.0 \mathrm{mL}$ at a time and receive a maximum of 4.00 mg of the API. What is the concentration in $\mathrm{mg} / \mathrm{mL}$ of the adult-strength medication, and how many milliliters of it should be diluted to make $100.0 \mathrm{mL}$ of child-strength cough syrup?
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