Chemistry question (homework)

Discussion in 'Lounge' started by brendons, May 28, 2009.

  1. brendons

    brendons Well-Known Member

    Mar 12, 2009
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    OK

    I'm KIND of a noob at this so spare me

    This is the question... this is the ONLY info that's given, and IDK what to do with it.

    Anybody know? :eek:

    What volume will a sample of gas occupy at 88˚C if it occupies 1.50 L at 32˚C?
     
  2. cheezeburger69

    cheezeburger69 Well-Known Member

    May 25, 2009
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    Dirty Stallis
    I don't think its possible to figure out...
     
  3. gscal

    gscal Well-Known Member

    Feb 24, 2009
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    You're a big help :rolleyes:
     
  4. Eli

    Eli ᕕ┌◕ᗜ◕┐ᕗ
    Staff Member Patreon Silver Patreon Gold

    4.125 Liters

    Charles' Law, nublet.
     
  5. cheezeburger69

    cheezeburger69 Well-Known Member

    May 25, 2009
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    Dirty Stallis
    You just cross multiplied and solved for X
     
  6. darkhorse

    darkhorse Well-Known Member

    Jan 18, 2009
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    88/32= 2.75

    2.75*1.50= 4.125 l
     
  7. Eli

    Eli ᕕ┌◕ᗜ◕┐ᕗ
    Staff Member Patreon Silver Patreon Gold

    Is this a serious post?
     
  8. Fletch

    Fletch Well-Known Member

    Jan 14, 2009
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    yep, that's all...Charles' Law, as Hodapp said...

    V1/T1 = V2/T2
     
  9. brendons

    brendons Well-Known Member

    Mar 12, 2009
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    guys

    LOL

    you forgot to assume constant pressure, which is 101.3 kPa.

    the equation you would normally use is P1V1/T1 = P2V2/T2, but since the pressure wasn't given, you're supposed to assume constant pressure (stupid i know :rolleyes:)

    and you have to convert your temperatures to kelvin by adding 273

    so its
    (101.3 kPa)(1.5 L) (101.3 kPa)(???)
    (32 + 273) = (88 + 273)

    (sorry it looks funny)


    Basically it comes out to 1.775 L actually

    but thanks for trying :D

    my neighbor showed me.
     
  10. 21duc29

    21duc29 Well-Known Member

    Mar 1, 2009
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    Student
    PV= nRT ?
     
  11. Eli

    Eli ᕕ┌◕ᗜ◕┐ᕗ
    Staff Member Patreon Silver Patreon Gold

    Tell your teacher the reason they're a teacher is because they make assumptions like what pressure the gas is at. ;)
     
  12. brendons

    brendons Well-Known Member

    Mar 12, 2009
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    no i don't think you need that for this question... you dunno what the gas is

    that's for the other stuff i have to do :mad:
     
  13. worldcup1100

    worldcup1100 Well-Known Member

    Feb 2, 2009
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    Wow, that is some dedication for an answer for going to a forum and your neighbor. I am not sure if I would care that much about a chemistry question.:rolleyes:
     
  14. Kamazar

    Kamazar Well-Known Member

    Dec 13, 2008
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    Why, thank you for the commentary, madame Curie.
     
  15. brendons

    brendons Well-Known Member

    Mar 12, 2009
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    well i had a test on this stuff the next day :p

    i needed to make sure i could handle the questions
     
  16. spiffyone

    spiffyone Well-Known Member

    Dec 7, 2008
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    Ah, I remember chemistry in high school.

    Or, actually I don't remember because the only thing we were mixing was alcohol and narcotics. :p
     
  17. spiffyone

    spiffyone Well-Known Member

    Dec 7, 2008
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    Um...

    Drugs are bad, m'kay.

    Just say no.

    ...

    And stay in school.
     
  18. brendons

    brendons Well-Known Member

    Mar 12, 2009
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    Honestly

    Chemistry is ok as long as you understand what you're doing... if i just have variables it never makes any sense until i can theorize what i'm doing in my head

    Math on the other hand..... ugh FML.
     
  19. Kamazar

    Kamazar Well-Known Member

    Dec 13, 2008
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    Math is easy. Just follow a set of rules and steps and you get an answer. I take Chem 2 next year, though, so we may have inverse opinions. Do they teach you how to make bombs?
     

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