Well, is it VDW or Dipole-Dipole?
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what is the strongest IMF in H2S watch
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Orihime
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- 14-01-2010 18:30
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- 14-01-2010 19:03
Dipole-dipole.
I saw your thread ages ago but didn't reply because I couldn't understand the title. -
Orihime
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- 14-01-2010 19:08
(Original post by starofale)
Dipole-dipole.
I saw your thread ages ago but didn't reply because I couldn't understand the title.InterMolecular Force
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charco
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- 14-01-2010 19:16
(Original post by Orihime)
Right...thats funny...InterMolecular Force
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- 14-01-2010 19:21
Yay, Dipole-dipole
Got that one right then. I was proper crapping myself in the exam before XD Kept crossing my answer out =/ -
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- 14-01-2010 19:23
Crap! I got that one wrong then. Lol :/
Last edited by franchango; 14-01-2010 at 19:26. -
MzExquisite
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- 14-01-2010 19:37
Wouldn't it be Van Der Waal forces? Since Dipole-dipole only occurs between hydrogen and Fluorine, Oxygen, Nitrogen or Chlorine?
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doginthesky
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- 14-01-2010 19:46
(Original post by MzExquisite)
Wouldn't it be Van Der Waal forces? Since Dipole-dipole only occurs between hydrogen and Fluorine, Oxygen, Nitrogen or Chlorine? -
CheeseToasty21
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- 14-01-2010 19:46
I wrote dipole-dipole, then van der waals...but I think it's wrong -_-
I only wrote van der waals because one of the other questions asked why the boiling point of the compounds increased. =/Last edited by CheeseToasty21; 14-01-2010 at 19:49. -
time.to.dance
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- 14-01-2010 19:49
(Original post by doginthesky)
Those are hydrogen bonds, which are different to dipole-dipole forces.. right?
(i think that is right)
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- 14-01-2010 21:11
Hydrogen bonding
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- 14-01-2010 21:17
Dipole-Dipole there are also VDW forces in H2S but they are obviously not as strong.
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- 14-01-2010 21:25
van der Waals are temporary induced dipole-dipoles. Dipole-Dipoles are permanent charge seperations. And Hydrogen bonding is a special case of dipole-dipole bonding that only appears in HF, HN and HO molecules due to the large difference in electronegativities. And yeah the strongest Intermolecular Force in H2S is Dipole-Dipole. Too bad I put vdW, I didn't really think about it too much =/.
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- 14-01-2010 21:29
it's defo dipole-dipole. I put vdW, but it's not the STRONGEST IMF. So that's one mark lost :/
http://answers.yahoo.com/question/in...3220800AAclnqa
http://taylord.people.cofc.edu/Inter...20homework.pdf ------>Q25(B) -
MzExquisite
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- 14-01-2010 22:57
Oh okay then, yeh i wrote van der waal forces as well
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Oh well, i'm just glad that that's over now! -
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- 15-01-2010 21:22
I put VdW too. Which is wrong... BUT, as they didn't give us any electronegativity values, and we don't need to memorise any... we might get the mark (according to my teacher) fingers crossed eh?
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Orihime
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- 15-01-2010 21:58
(Original post by Jadio)
I put VdW too. Which is wrong... BUT, as they didn't give us any electronegativity values, and we don't need to memorise any... we might get the mark (according to my teacher) fingers crossed eh?
My teacher also said it was VDW -
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- 16-01-2010 09:36
Its permanent dipole-permanent dipole (or dipole-dipole) because the S is partially negative, due to electronegativity. Thats the strongest force of attraction.
Van Der Waal (or Instantaneous Dipole-Induced Dipole) if you're on a course like salters will also happen but its not as strong as dipole-dipole.
It's NOT hydrogen bonding. You don't get h-bonding in any of the 'dihydrides' (is that the right term, for H2X) apart from H2O. -
LearningMath
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- 16-01-2010 11:04
Pretty stupid question if they didnt give electronegativity values or ask you to memorize anything...
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Orihime
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- 16-01-2010 12:58
(Original post by charco)
International Monetary Fund
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