Answer:
30 mg of active ingredient is required to prepare a 0.3% (W/V) solution.
Step-by-step explanation:
0.3% (w/v) solution can also be expressed as: 0.3 g active ingredient for 100 ml of solution.
So:
[tex]\frac{0.3g}{100 ml} *\frac{1000mg}{1g}*10ml[/tex]= 30 mg
In conclusion, we need to weigh 30 mg of active ingredient and then dilute it in 10 ml of water.
