Question

How many mL of a 4% solution contains 400 mg of medication

Answer 1

200 ml of 4% solution contains 400 mg of medication

Explanation:

• 0.5 ml of solution has 1 mg of medication
• for example, if 10 mg of medication needs to be determined all we must do is multiply 0.5 ml of solution by 10 mg of medicine to get the answer.
• in the above question we need to determine the number of milliliters of a 4% solution containing 400 mg of medication.
• all we must do is multiply 0.5 ml of solution to 400 mg of medication to get the answer.  

                                        0.5 ml x 400 mg = 200 ml