Question

What is the percentage strength of the resulting solution when 400 mL of Sterile Water for Injection (SWFI) is added to 1 liter of normal saline solution?

Answer 1

To calculate the percentage strength of the resulting solution, you need to determine the concentration of the Sterile Water for Injection (SWFI) solution after it is added to the normal saline solution.

Step-by-step explanation:

To calculate the percentage strength of the resulting solution, we need to determine the concentration of the Sterile Water for Injection (SWFI) solution after it is added to the normal saline solution.

First, calculate the initial volume of the normal saline solution by converting 1 liter to milliliters: 1 liter = 1000 milliliters.

Next, calculate the final volume of the resulting solution by adding 400 mL of SWFI to the initial volume of the normal saline solution: 1000 mL + 400 mL = 1400 mL.

Finally, calculate the percentage strength of the resulting solution by dividing the volume of SWFI by the final volume of the solution and multiplying by 100: (400 mL / 1400 mL) x 100 = 28.57%.