To calculate the required volume of the stock solution needed to obtain 80 mg of Tramadol Hydrochloride, you can use a proportion based on the stock concentration.
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Understand the Stock Concentration:
- The stock concentration is 50 mg in 2 mL.
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Calculate the amount of volume needed for 80 mg:
- Set up the proportion based on the stock solution: \[ \frac{50 \text{ mg}}{2 \text{ mL}} = \frac{80 \text{ mg}}{x \text{ mL}} \]
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Cross-multiply to find x: \[ 50 \text{ mg} \cdot x \text{ mL} = 80 \text{ mg} \cdot 2 \text{ mL} \]
This becomes: \[ 50x = 160 \]
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Solve for x: \[ x = \frac{160}{50} = 3.2 \text{ mL} \]
Final Prescription Fill:
Prescription.
3.2 mL x ml = ?
Stock
80 mg
_____________ x 2 ml =
50 mg
So you will require 3.2 mL of the stock solution to provide the prescribed 80 mg of Tramadol Hydrochloride.