Notices
Results 1 to 7 of 7

Thread: pleaes help

  1. #1 pleaes help 
    Forum Freshman
    Join Date
    Oct 2008
    Posts
    14
    I have been asked to to calculatethe density of methane gas from the following information:
    Mass of methane held within the container=0.000734kg,
    internal volume of container=0.011 m3

    I came up with 0.00734
    ----------=0.667272727
    0.011


    Can anyone help me present an altrenative version of the answer that you think would very well demonstrate the use of mathematicle skills. [/i]


    Reply With Quote  
     

  2.  
     

  3. #2 Re: pleaes help 
    Forum Professor
    Join Date
    Jul 2008
    Location
    New York State
    Posts
    1,235
    Quote Originally Posted by trigger
    I have been asked to to calculatethe density of methane gas from the following information:
    Mass of methane held within the container=0.000734kg,
    internal volume of container=0.011 m3

    I came up with 0.00734
    ----------=0.667272727
    0.011


    Can anyone help me present an altrenative version of the answer that you think would very well demonstrate the use of mathematicle skills. [/i]
    Your approach (division) is correct. However you should check to see that the numbers you used are correct (hint - they are not!).


    Reply With Quote  
     

  4. #3  
    Forum Freshman
    Join Date
    Oct 2008
    Posts
    19
    I think what you are getting at is that you want an answer that shows you can use good math skills. What you need to know and i think you know this is that density is mass per unit volume so what you could do to show your math skills is convert to different units for each of those. Instead of kg you could convert to grams, milligrams, lbs, any measure of mass. Instead of m^3 you could convert to cm^3 which is a mL, or any other volume units. That is about the only way you can do it to show use of different math skills.
    Reply With Quote  
     

  5. #4  
    Gyd
    Gyd is offline
    Forum Freshman
    Join Date
    Aug 2008
    Location
    Southern California
    Posts
    73
    Quote Originally Posted by HarryPotter
    I think what you are getting at is that you want an answer that shows you can use good math skills. What you need to know and i think you know this is that density is mass per unit volume so what you could do to show your math skills is convert to different units for each of those. Instead of kg you could convert to grams, milligrams, lbs, any measure of mass. Instead of m^3 you could convert to cm^3 which is a mL, or any other volume units. That is about the only way you can do it to show use of different math skills.
    Ya......... what ever he (harry) said.
    GONE ON A LONG WALK
    Reply With Quote  
     

  6. #5  
    Forum Isotope Bunbury's Avatar
    Join Date
    Sep 2007
    Location
    Colorado
    Posts
    2,590
    You could show your understanding of significant figures by rounding the result appropriately.

    You should also state the units of the result of your calculation.
    Reply With Quote  
     

  7. #6  
    Forum Sophomore
    Join Date
    Sep 2008
    Posts
    174
    Scientific Notation for the numbers
    Reply With Quote  
     

  8. #7 I found that connector you were looking for 
    New Member
    Join Date
    Oct 2008
    Posts
    1
    I found that connector you were looking for
    Cindy, is this the thing you were looking for?
    www.liangdianup.com/computeraccessories_1.htm

    It's on the list of computer accessories and parts. They have the DVI video thing to convert that jap monitor to work with your other computer. Just about any other kind of wire adaptor, usb connectors, monitor extension wires, ps2 extention wires, and all kinds of female and male swap connectors and things that I think would help your shop. If that above link don't work then goto www.lducompany.com and click on computer accessories. Let me know if that is what you need and give me your email address again.
    Reply With Quote  
     

Bookmarks
Bookmarks
Posting Permissions
  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •