3. You are making ampicillin plates. You are given a vial of ampicillin that is labeled as a 1% solution and told that you need to make 40 plates using this solution. Assuming that
you will need 25 mL per plate, what volume of LB agar solution should you make to
prepare the 30 plates? What volume of the 1% ampicillin solution do you need to add to
this volume of LB agar if the final concentration of ampicillin in the plates should be 50 ug/umL?