H3O+

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Abigail Menchaca_1H
Posts: 104
Joined: Sat Sep 07, 2019 12:19 am

H3O+

Postby Abigail Menchaca_1H » Sun Nov 24, 2019 2:06 pm

Why is H3O+ tetrahedral?

Jamie Lee 1H
Posts: 54
Joined: Fri Aug 09, 2019 12:15 am

Re: H3O+

Postby Jamie Lee 1H » Sun Nov 24, 2019 2:14 pm

H3O+ has tetrahedral orbital geometry because it is sp3 but has a trigonal pyramidal molecular geometry due to the one lone pair and the 3 atoms.

sbeall_1C
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Re: H3O+

Postby sbeall_1C » Sun Nov 24, 2019 2:16 pm

Hi!

H3O+ has a molecular geometry of tetrahedral, since there are 4 regions of electron density surrounding the central O atom (3 Hydrogens and 1 lone pair of electrons). The VSEPR shape would be trigonal pyramidal.

Abigail Menchaca_1H
Posts: 104
Joined: Sat Sep 07, 2019 12:19 am

Re: H3O+

Postby Abigail Menchaca_1H » Sun Nov 24, 2019 6:18 pm

sbeall_1C wrote:Hi!

H3O+ has a molecular geometry of tetrahedral, since there are 4 regions of electron density surrounding the central O atom (3 Hydrogens and 1 lone pair of electrons). The VSEPR shape would be trigonal pyramidal.


What does this mean in terms of bond angles?

Aedra Li 3H
Posts: 40
Joined: Fri Aug 30, 2019 12:17 am

Re: H3O+

Postby Aedra Li 3H » Sun Nov 24, 2019 6:23 pm

I believe the bond angles would be less than 109.5

Sreyes_1C
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Joined: Fri Sep 28, 2018 12:19 am

Re: H3O+

Postby Sreyes_1C » Sun Nov 24, 2019 9:08 pm

its classification as tetrahedral is based off of it having 4 regions of density, as it will have a lone pair on the O as just the three hydrogrens would not satisfy oxygen

Kehlin Hayes 4C
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Joined: Wed Sep 18, 2019 12:17 am

Re: H3O+

Postby Kehlin Hayes 4C » Sun Nov 24, 2019 9:09 pm

This molecule is tetrahedral because it has four regions of electron density, one being a lone pair.

ABombino_2J
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Joined: Thu Jul 11, 2019 12:15 am

Re: H3O+

Postby ABombino_2J » Sun Nov 24, 2019 9:12 pm

H3O+ is has an electron arrangement tetrahedral because there are 4 regions of electron density. However, the shape of H3O+ is trigonal planar because there are 3 bonds and 1 lone pair in H3O+. Be sure when looking at a molecule that you differentiate whether or not you are looking for shape or electron arrangement.

ThomasNguyen_Dis1H
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Joined: Fri Aug 30, 2019 12:17 am

Re: H3O+

Postby ThomasNguyen_Dis1H » Sun Nov 24, 2019 9:14 pm

H30+ is tetrahedral since the O is bonded to 3 hydrogens and has a lone pair which makes the molecule have 4 electron densities. Since there's one lone pair the shape would be trigonal pyramidal.

SVajragiri_1C
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Joined: Thu Jul 11, 2019 12:16 am

Re: H3O+

Postby SVajragiri_1C » Sun Nov 24, 2019 9:28 pm

H3O+ is tetrahedral because when drawing the lewis structure, there are a total of 8 electrons, and so oxygen should have 3 bonds (to hydrogens) and then one lone pair, which means there are four regions of electron density about the central atom, which means the molecular geometry is tetrahedral, but the shape is trigonal pyramidal.

SVajragiri_1C
Posts: 115
Joined: Thu Jul 11, 2019 12:16 am

Re: H3O+

Postby SVajragiri_1C » Sun Dec 08, 2019 11:30 pm

The Lewis structure has 8 electrons, and when drawing the Lewis structure there are three bonds to the oxygen, with one lone pair. So there are 4 electron domains, so the molecular geometry is tetrahedral. But one electron domain is a lone pair, so the actual shape is trigonal pyramidal.

san_2F
Posts: 118
Joined: Sat Jul 20, 2019 12:15 am

Re: H3O+

Postby san_2F » Sun Dec 08, 2019 11:37 pm

H3O+ is a tetrahedral molecule and has bond angle of 120

Xavier Herrera 3I
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Joined: Wed Sep 30, 2020 9:37 pm

Re: H3O+

Postby Xavier Herrera 3I » Sat Nov 14, 2020 9:56 pm

H3O+ is tetrahedral because it has 8 total valence electrons, so there must be a bond between each of the 3 H atoms and the O, leaving a lone pair on the O.


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