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Homework Help: A density of 1.5 g cm-3 is equivalent to:

  1. Mar 10, 2012 #1
    A density of 1.5 g cm-3 is equivalent to:

    a. 1500 g L-1

    b. 150 g L-1

    c. 1.5x10^-3 Kg L-1

    d. 15 g L-1
     
  2. jcsd
  3. Mar 10, 2012 #2

    chemisttree

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    So, what do you think?
     
  4. Mar 10, 2012 #3
    i would think is c but im sure its wrong
     
  5. Mar 10, 2012 #4

    chemisttree

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    If you can explain your choice, it will be obvious I'm sure.
     
  6. Mar 12, 2012 #5
    1cm=10dm
    1cm/3= 1000dm/3 (since 10^3=1000)
    1dm=1L
    1000dm/3=1000L

    Therefore your task here is to multiply 1.5 by the equivalent of 1 cm/3 in Liters :)
     
    Last edited: Mar 12, 2012
  7. Mar 13, 2012 #6

    Borek

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    No. 1dm=10cm

    You started with the wrong assumption, so this is wrong as well. Note that 1cm/3 and 1cm3 are two different things. I suppose you wanted to write cm^3.

    And miraculously this is correct.
     
  8. Mar 13, 2012 #7

    Oh yeah, I did make a few mistakes. Fortunately, I remembered and put down the concept of what had to be done.
     
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