HOMEWORK GIAPTER A2 MEASURE MINNTS Directions: Use the significant figure rules and scientific notation where uppropriate, All work must be shown on a separate piece of paper. 1. How many significant figures does this value have? 0.00250207 significan t fiq ures 2. 1.34+0.2=1.54 3. (9.33105)(0.35103)=338 4. A bullet can travel as fast 2.600ft,s, what is this speed in mileshr? 1 inte =5280ft 5. What is the density in g/mL of a metal object with a mass of 0.25kg and a volume of 135.0 mL 6. The licensed preseriber orders phenobarbital 45mg orally two times a day. Phenobarbital elixir. 20mg/5mL, is available. How many mL will the nurse administer? 7. Convert 253mg into grams. 8. Convert 125L into mL. 9. The licenised preseriber orders Prozac (fluoxetine) 40mg po daily in A.M. How many mL will the nurse administer per does