Question

Using a scale insensitive to quantities smaller than 6 mg, a student weighs 125 mg of a drug, then 300 mg of diluent, mixes these together and then measures 145 mg of that mixture. What is the percent error inherent in the student's first weight? (round answer to one decimal and show work)

A calculation that might help: LWQ (least weighable quantity) mg = ((100% * sensitivity requirements (mg)) / %error)

Answer 1