Answer:
The answer is 15mg
Explanation:
As we know that
The percentage can be written as
0.5 % solution means 0.5 / 100 = 0.005
Now 0.5 grams are equal to 500 milligrams.
So if we want to find percentage in 3mL we will write as
= 3 x (500 mg / 100 mL)
= 15 mg