# Chemistry question (homework)

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

1. ### brendons Well-Known Member

Mar 12, 2009
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#1
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?

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

2. ### cheezeburger69 Well-Known Member

May 25, 2009
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Dirty Stallis
#2
I don't think its possible to figure out...

3. ### gscal Well-Known Member

Feb 24, 2009
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#3
You're a big help

4. ### Eli ᕕ┌◕ᗜ◕┐ᕗ Staff MemberPatreon SilverPatreon Gold

#4
4.125 Liters

Charles' Law, nublet.

5. ### cheezeburger69 Well-Known Member

May 25, 2009
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Dirty Stallis
#5
You just cross multiplied and solved for X

6. ### darkhorse Well-Known Member

Jan 18, 2009
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#6
88/32= 2.75

2.75*1.50= 4.125 l

7. ### Eli ᕕ┌◕ᗜ◕┐ᕗ Staff MemberPatreon SilverPatreon Gold

#7
Is this a serious post?

8. ### Fletch Well-Known Member

Jan 14, 2009
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#8
yep, that's all...Charles' Law, as Hodapp said...

V1/T1 = V2/T2

9. ### brendons Well-Known Member

Mar 12, 2009
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#9
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 )

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

my neighbor showed me.

Mar 1, 2009
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Student
#10
PV= nRT ?

11. ### Eli ᕕ┌◕ᗜ◕┐ᕗ Staff MemberPatreon SilverPatreon Gold

#11
Tell your teacher the reason they're a teacher is because they make assumptions like what pressure the gas is at.

12. ### brendons Well-Known Member

Mar 12, 2009
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#12
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

13. ### worldcup1100 Well-Known Member

Feb 2, 2009
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#13
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.

14. ### Kamazar Well-Known Member

Dec 13, 2008
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#14
Why, thank you for the commentary, madame Curie.

15. ### brendons Well-Known Member

Mar 12, 2009
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#15
well i had a test on this stuff the next day

i needed to make sure i could handle the questions

16. ### spiffyone Well-Known Member

Dec 7, 2008
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#16
Ah, I remember chemistry in high school.

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

17. ### spiffyone Well-Known Member

Dec 7, 2008
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#17
Um...

Just say no.

...

And stay in school.

18. ### brendons Well-Known Member

Mar 12, 2009
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#18
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 Well-Known Member

Dec 13, 2008
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#19
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?