Question

A medication is given at a dosage of 3.000 mg of medication per kg of body weight. If 0.1700 g of medication is given, then what was the patient’s weight in pounds (lbs.)? Use significant figures. Do not enter “lbs” as part of your answer. Do not use scientific notation

Answer 1

We will find out first the mass of the person in kilograms like this:
3000 mg .......................................................... 1 kg
170 mg (0.1700 g) ........................................... x kg
=> $x= \frac{170}{3000} =0.05 kg$
The mass in pounds will be 0.05 * 2.204 = 0.124 pounds as 1 kg is equal 2.204 pounds. So the answer is 0.124 .