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touch me i'm sick 02.25.2008 11:27 PM

help with chemistry
 
i've got two lab reports due tomorrow, and i'm having trouble finding literature values.

this is what i need:
-enthalpy of neutralization of sodium hydroxide and hydrochloric acid **edit: i got this one out of the way
-enthalpy of nautralization of sodium hydroxide and sulfuric acid
-enthalpy of Magnesium and Hydrochloric acid
-enthalpy of magnesium oxide and hydrochloric acid

if you have any idea where i could find this i'd really appreciate a link

!@#$%! 02.25.2008 11:29 PM

jeezus. i used to know this. but literature killed my brain. sorry.

can't you calculate?

Everyneurotic 02.25.2008 11:31 PM

wiki?

touch me i'm sick 02.25.2008 11:32 PM

yeah i could but, then my problem is finding literature values for enthalpies of formation and bond enthalpies

touch me i'm sick 02.25.2008 11:33 PM

i wish tokolosh was here, he helped with my last lab report

!@#$%! 02.25.2008 11:43 PM

http://www.webelements.com/webelemen...able/enth.html

http://en.wikipedia.org/wiki/Standard_enthalpy_change_of_formation_%28data_tabl e%29

???

touch me i'm sick 02.25.2008 11:48 PM

oh man that first link really does help
thanks a lot

though it'd be less work if i could find the end results

gmku 02.25.2008 11:49 PM

Literature values? You mean, like Hemingway's use of objective corelatives in The Sun Also Rises, and Nabokov's use of puns? What does this have to do with chemistry?

touch me i'm sick 02.25.2008 11:52 PM

literature values in science are what lab results should be. i have to compare that to the expiremental value i got while doing my lab.

it's really a drag...

gmku 02.26.2008 12:01 AM

Seems like, as in real literature, you could just make it up.

touch me i'm sick 02.26.2008 12:07 AM

i wish man

StevOK 02.26.2008 12:11 AM

I often think of making a t-shirt that says "Enthalpy Kills", but I doubt more than 1% of the people I know would get the joke.

Everyneurotic 02.26.2008 12:22 AM

the dennis miller ratio:

c:\dos
c:\dos\run
run\dos\run

touch me i'm sick 02.26.2008 12:34 AM

Quote:

Originally Posted by StevOK
I often think of making a t-shirt that says "Enthalpy Kills", but I doubt more than 1% of the people I know would get the joke.


i gotta say, i don't get it...
i'm sure if you explained it to me it would be humorous

StevOK 02.26.2008 12:49 AM

Enthalpy reactions cause things to slow down, cool down, and die. It takes many forms. My chem professor said it was why we age and die, and why the sun and the earth will one day be gone.

floatingslowly 02.26.2008 12:50 AM

Quote:

Originally Posted by Everyneurotic
c:\dos
c:\dos\run
run\dos\run


10 REM "lawl"
20 print "awesome"
30 CLS
40 print "I liek 2 rede sum tihngs 2"
50 end


PS: sorry, I'm no chemist. come back for astrophysics please. :)

touch me i'm sick 02.26.2008 01:07 AM

Quote:

Originally Posted by StevOK
Enthalpy reactions cause things to slow down, cool down, and die. It takes many forms. My chem professor said it was why we age and die, and why the sun and the earth will one day be gone.


ahh oh yeah. i've confused definitions with entropy. i feel like an idiot considering we discussed and said the same thing in my chemistry class.

touch me i'm sick 02.26.2008 01:08 AM

Quote:

Originally Posted by floatingslowly
PS: sorry, I'm no chemist. come back for astrophysics please. :)


i'm afraid i won't. i stopped taking physics long ago

StevOK 02.26.2008 01:17 AM

Quote:

Originally Posted by touch me i'm sick
ahh oh yeah. i've confused definitions with entropy. i feel like an idiot considering we discussed and said the same thing in my chemistry class.


Now I'm confused. I think perhaps I was the one who got confused and meant to say entropy instead of enthalpy. I dunno. It's been quite a long time since I took that class.

!@#$%! 02.26.2008 02:32 AM

we die cos of entropy (things fall apart)

enthalpy is the heat released from a chemical reaction (ok, enthalpy is the total energy but usually we deal with enthalpy change, the change in energy from a reaction: exo/endothermic)

if anything, enthalphy change (from metabolism) keeps us warm :)


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