Final answer:
To calculate the amount of drug in 40 mL when the concentration is 500 mg per 10 mL, set up a proportion and solve for x. The answer is 2000 mg in 40 mL.
Step-by-step explanation:
The student is asking how to calculate the amount of drug dispensed in milligrams when a different volume is given than the one stated in the dosage information. The question specifies that the drug is dispensed at a concentration of 500 mg per 10 mL. To find out how many milligrams are in 40 mL, we set up a proportion based on the concentration:
500 mg / 10 mL = x mg / 40 mL
Solving for x, we get:
x = (500 mg / 10 mL) × 40 mL
x = 2000 mg
Therefore, there are 2000 mg of the drug in 40 mL of the solution.