Question

The question is as follows:

1. A 3-gram vial requires 20 mL of diluent to be added. It has a powder volume of 5 mL. How many milligrams are in each milliliter of the reconstituted solution?

2. Please provide the calculation for determining the milligrams per milliliter in the reconstituted solution.

Answer 1

To calculate the concentration of the reconstituted solution, divide the total mass of solute (3000 mg) by the total volume of the solution (25 mL) resulting in a concentration of 120 mg/mL.

Step-by-step explanation:

The question asks us to calculate the concentration of the reconstituted solution in milligrams per milliliter. To do this, we'll proceed with the following calculation:

We have a 3-gram vial, which is equivalent to 3000 milligrams (since 1 gram = 1000 milligrams). After adding 20 mL of diluent, the total volume of the solution will be the amount of diluent plus the powder volume. Therefore, the total volume is 20 mL + 5 mL = 25 mL.

To find the concentration of the solution in milligrams per milliliter, we'll use the formula:

Concentration (mg/mL) = Total mass of solute (mg) / Total volume of solution (mL)

So, we have:

3000 mg / 25 mL = 120 mg/mL

Thus, each milliliter of the reconstituted solution contains 120 milligrams of the solute.