Problem 3F10 b

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Diana_Diep2I
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Joined: Sat Aug 17, 2019 12:17 am

Problem 3F10 b

Postby Diana_Diep2I » Thu Nov 21, 2019 10:28 am

Which structure has stronger IMFs? SiF4 or Si2F2?

Daniel Martinez 1k
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Joined: Wed Sep 18, 2019 12:16 am

Re: Problem 3F10 b

Postby Daniel Martinez 1k » Thu Nov 21, 2019 11:00 pm

Si2F2

Sydney Myers 4I
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Joined: Fri Aug 09, 2019 12:17 am

Re: Problem 3F10 b

Postby Sydney Myers 4I » Fri Nov 22, 2019 12:13 am

Daniel Martinez 1k wrote:Si2F2


Is this due to the shape? because Si2F2 would have a more linear structure, compared with a round structure of SiF4, and higher surface area makes for higher intermolecular forces, specifically London Dispersion Forces.

ValerieChavarin 4F
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Joined: Wed Sep 18, 2019 12:18 am

Re: Problem 3F10 b

Postby ValerieChavarin 4F » Sat Nov 23, 2019 3:59 pm

Sydney Myers 4H wrote:
Daniel Martinez 1k wrote:Si2F2


Is this due to the shape? because Si2F2 would have a more linear structure, compared with a round structure of SiF4, and higher surface area makes for higher intermolecular forces, specifically London Dispersion Forces.

I believe this question is dependent on polarity, no shape for size.

904914037
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Joined: Wed Sep 18, 2019 12:16 am

Re: Problem 3F10 b

Postby 904914037 » Sat Nov 23, 2019 6:51 pm

Because SiF4 is a nonpolar molecule, it is only capable of having induced dipole-induced dipole bonds (London Forces). Si2F2, on the other hand, is a polar molecule--which you can determine from drawing the lewis structure and examining its molecular geometry/shape--which means it is capable of having dipole-dipole bonds which are stronger than London Forces, meaning that Si2F2 has the stronger IMFs.

Mallika Chimpiri 3K
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Joined: Thu Jul 25, 2019 12:17 am

Re: Problem 3F10 b

Postby Mallika Chimpiri 3K » Sat Nov 23, 2019 8:26 pm

Si2F2 has stronger intermolecular forces because it is more polar. SiF4 is non polar.

HanaAwad_4B
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Joined: Fri Aug 30, 2019 12:18 am

Re: Problem 3F10 b

Postby HanaAwad_4B » Sat Nov 23, 2019 9:08 pm

Because SiF4 is nonpolar, it has lower intermolecular forces than Si2F2 which is polar.


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