Question: how to calculate percentage from mg/ml?
Answer: To express the value as a percentage, we need to convert the number of milligrams in 1 mL to grams in 100 mL: g – – mg 10 mg= 0 0 1 0 =0.01 g There is 0.01 g of morphine sulfate in 1 mL of solution. Which means that there is 0.01×100 g=1 g in 100 mL. The percentage is 1% w/v.