Sapling #20

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IreneSeo3F
Posts: 97
Joined: Wed Sep 30, 2020 9:31 pm

Sapling #20

Postby IreneSeo3F » Sun Nov 29, 2020 11:45 pm

Hi, on sapling 20, why is the AsO43- ion nonpolar? How are the dipoles canceled?
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Kyle Walsh 2J
Posts: 100
Joined: Wed Sep 30, 2020 9:48 pm

Re: Sapling #20

Postby Kyle Walsh 2J » Sun Nov 29, 2020 11:50 pm

Hi! I believe that this molecule is nonpolar because every atom has the same polarity (as they are all oxygen), and they are all evenly spaced in a tetrahedral formation (since there are no lone pairs), and therefore their dipoles cancel. Hope this helped!
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Mia Glinn 1I
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Re: Sapling #20

Postby Mia Glinn 1I » Thu Nov 04, 2021 9:10 pm

Because the dipoles of the polar bonds (As-O) cancel out, the molecule is not polar. AsO4- has a tetrahedral form. Because all of the outside atoms are the same (O), the polar bonds' dipoles cancel out, and the molecule is not polar.
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