2F.13


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Jessica Luong 3E
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Joined: Sat Aug 17, 2019 12:17 am

2F.13

Postby Jessica Luong 3E » Sun Nov 24, 2019 11:21 pm

Acrylonitrile, CH CHCN, is used in the synthesis of 2
acrylic fibers (polyacrylonitriles), such as Orlon. Draw the Lewis structure of acrylonitrile and describe the hybrid orbitals on each carbon atom. What are the approximate values of the bond angles?

Chem_Mod
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Re: 2F.13

Postby Chem_Mod » Mon Nov 25, 2019 3:12 pm

What specifically about this question are you having trouble with.

haileyramsey-1c
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Re: 2F.13

Postby haileyramsey-1c » Tue Nov 26, 2019 11:49 am

The lewis structure of acrylonitrile is attached. To calculate the bond angles you must consider each set of atoms' VSEPR (for example the C,H,H, and C is trigonal planar and therefore the angles are 120 for that set). You repeat this process for each set of at least 3 atoms because for a bond angle to exist there must be at least 3 atoms involved.

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Chris Tai 1B
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Re: 2F.13

Postby Chris Tai 1B » Wed Nov 27, 2019 6:56 pm

Before solving any part of this problem, you should try and create a lewis dot structure like the one shown above; then you can look at each of the individual carbons to determine the bond angles. For instance, because the first CH2 carbon is sigma bonded to two hydrogens and double bonded to another carbon, there are only three regions of electron density around it. Hence, according to the VSEPR model, the angles around this carbon atom should be approximately 120 degrees. Repeat the process for the other carbons to find their bond angles
Regarding the hybridization, you know that sp^2 relates to a trigonal planar shape, so this must be the state of hybridization that the first carbon is in. Repeat for the other two carbons


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