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Homework Help: Chemistry Question

  1. Oct 5, 2008 #1
    What is the density of sugar g/cm^3 if its density is 1590kg/m^3?

    Hint: 1m^3 equals 1,000,000cm^3.

    I know that 1590kg to g is 1,590,000g.

    But how do I get the other half of it to cm^3?



    Help.

    Thanks.
    :)
     
    Last edited: Oct 5, 2008
  2. jcsd
  3. Oct 5, 2008 #2

    symbolipoint

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    Your question is just a simple proportion problem. You have the needed ratio; just use it.
     
  4. Oct 5, 2008 #3
    Isnt it already in cm^3 in your given data
     
  5. Oct 5, 2008 #4
    Sorry I can't see the proportion.
    What is it?

    EDIT: I meant m^3.
     
  6. Oct 5, 2008 #5
    1590kg/cm^3 times 1000g/1kg times 100cm/1m
     
  7. Oct 5, 2008 #6
    your units should cancel out to give you the answer...and on the last part it should be 100cm^3/1 m^3
     
  8. Oct 5, 2008 #7
    The question is asking to convert from kg/m^3 to g/cm^3.
     
  9. Oct 5, 2008 #8
    oh ok my bad...then it would be 1590kg/m^3 times 1000g/1kg times 1m^3/100 cm^3
     
  10. Oct 5, 2008 #9
    but 1 m^3 = 1,000,000 cm^3
     
  11. Oct 5, 2008 #10
    put that 1,000,000 cm^3 in place of my 100cm^3
     
  12. Oct 5, 2008 #11
    my bad sorry for the confussion
     
  13. Oct 5, 2008 #12
    its ok thanks.
     
  14. Oct 5, 2008 #13
    The answer will be 1590*1000/1000000 = 1.59g/cm^3.
     
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