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Density Question

  1. Jun 20, 2009 #1
    1. The problem statement, all variables and given/known data
    What are the various methods of measuring the density of a swimming pool water sample.


    2. Relevant equations



    3. The attempt at a solution
    I thought the best way of measuring the density would be to fill a tube which you know the mass of with the liquid, then subtract the original mass of the tube and it would give you the density of the liquid. Am I correct? Please help me, thank you!
     
  2. jcsd
  3. Jun 20, 2009 #2
    You're right so far. Make sure that you know the volume that the water takes up.
     
  4. Jun 20, 2009 #3
    Thank you, but what other methods are there to measuring density?
     
  5. Jun 20, 2009 #4
    Look up hydrometers.
     
  6. Jun 20, 2009 #5
    Thank you very much gentlemen, you have been brilliant, many thanks!
     
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