Final answer:
There are 400 milligrams in 4mL of a 10% (weight/volume) Mucomyst solution since 10% (w/v) corresponds to 100 mg of solute per 1 mL of solution.
Step-by-step explanation:
To calculate how many milligrams are in 4mL of a 10% (weight/volume) Mucomyst solution, we use the definition of percent concentration. A 10% (w/v) solution means there are 10 grams of solute for every 100 mL of solution. Therefore, in 1 mL of solution, there would be 0.1 grams (100 mg) of solute. For 4 mL, you multiply 100 mg by 4 to get the total mass of solute in milligrams.
The calculation is as follows:
100 mg/mL × 4 mL = 400 mg
Thus, there are 400 milligrams in 4mL of a 10% (w/v) Mucomyst solution.