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Chemistry Practice Problems: Compound Unit Conversions

[View the accompanying Lesson on Compound Unit Conversions here.]

[Download the accompanying PDF worksheet here.]

Perform the following calculations, being sure to give the answer with the correct number of significant digits.

  1. A certain medication is set to deliver through an IV at a rate of 3.0 mg/min.  What is this rate in ng/s?
  2. A drug is administered at a rate of 14.5 cL/hour.  What is this rate in µL/s?
  3. An automobile tire has a pressure of 32 psi (pounds/in.2). What is this pressure in g/cm2(1 lb ˜ 454 g, 1 in. = 2.54 cm)
  4. The density of propane is 36.28 lb/ft3.  Convert this to kg/m3(1 lb ˜ 454 g, 1 in. = 2.54 cm)



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