Final answer:
To find the number of milliliters (mL) administered, use the equation: Concentration of stock solution x Volume of stock solution = Concentration of desired solution x Volume of desired solution. In this case, the concentration of the stock solution is 6.0% (m/v) and the desired volume is 1.3 mg. Plugging in the values, the volume of the stock solution is approximately 21.67 mL.
Step-by-step explanation:
To find the number of milliliters (mL) administered, we can use the equation:
Concentration of stock solution x Volume of stock solution = Concentration of desired solution x Volume of desired solution
In this case, the concentration of the stock solution is 6.0% (m/v) and the desired volume is 1.3 mg. Assuming the stock solution is in mL, we can rearrange the equation to solve for the volume of the stock solution:
The volume of stock solution = (Concentration of desired solution x Volume of the desired solution) / Concentration of stock solution
Plugging in the values from the question:
Volume of stock solution = (1.3 mg) / (6.0%)
We can convert the concentration to decimal form by dividing it by 100:
(1.3 mg) / (0.06) = 21.67 mL
So, 21.67 mL of the stock solution should be administered to Michelle.