Question

A doctor writes a prescription for 200 mL of Bactrim solution for an ear infection. The pharmacy technician uses 50 g of the powdered drug from stock. What is the percent strength of the solution?

Answer 1

To find the percent strength of the solution, divide the mass of the drug by the volume of the solution and then multiply by 100.

Step-by-step explanation:

To find the percent strength of the solution, we need to compare the amount of the drug used to the total volume of the solution. In this case, the pharmacy technician used 50 g of the powdered drug from stock to make a 200 mL solution.

We can calculate the percent strength by dividing the mass of the drug by the volume of the solution and then multiplying by 100. So, the percent strength of the solution is:

Percent strength = (mass of drug / volume of solution) x 100

Plugging in the values, we get:

Percent strength = (50 g / 200 mL) x 100 = 25%