Polarity

Moderators: Chem_Mod, Chem_Admin

salvadorramos3k
Posts: 72
Joined: Wed Sep 18, 2019 12:18 am

Polarity

Postby salvadorramos3k » Sat Nov 16, 2019 5:50 pm

Can somebody please explain to me why CCl4 is nonpolar even though the dipole moments do not cancel out?

505316964
Posts: 95
Joined: Thu Jul 11, 2019 12:17 am

Re: Polarity

Postby 505316964 » Sat Nov 16, 2019 5:52 pm

The dipole moments do cancel out, the shape is symmetrical, and the surrounding atoms are the same. Their dipoles point in the same direction, so they should cancel out making CCl4 nonpolar.

Aman Sankineni 2L
Posts: 103
Joined: Fri Aug 30, 2019 12:17 am

Re: Polarity

Postby Aman Sankineni 2L » Sat Nov 16, 2019 5:58 pm

CCl4 has a tetrahedral shape that is symmetrical. Therefore, the bond polarity is canceled out.

Madeline Phan 1E
Posts: 103
Joined: Sat Aug 17, 2019 12:18 am

Re: Polarity

Postby Madeline Phan 1E » Sat Nov 16, 2019 7:00 pm

It is the symmetrical shape of carbon tetrachloride that allows its bond polarity to cancel out.

quresh3E
Posts: 36
Joined: Wed Sep 18, 2019 12:17 am

Re: Polarity

Postby quresh3E » Sun Nov 17, 2019 5:21 pm

CCl4 has equal dipoles and no lone pairs so it should be nonpolar.

Brian J Cheng 1I
Posts: 115
Joined: Thu Jul 11, 2019 12:15 am

Re: Polarity

Postby Brian J Cheng 1I » Sun Nov 17, 2019 5:31 pm

It's a symmetric molecule and has even distributions of electron density; thus, it is nonpolar.

205154661_Dis2J
Posts: 109
Joined: Wed Sep 18, 2019 12:21 am

Re: Polarity

Postby 205154661_Dis2J » Sun Nov 17, 2019 8:12 pm

For a molecule to be polar, it must possess a non-zero value of dipole moment. In the molecule CCl4, the bond polarity is canceled by the symmetric tetrahedral shape causing the dipole moment to be zero.

Jacob Villar 2C
Posts: 105
Joined: Sat Aug 17, 2019 12:18 am

Re: Polarity

Postby Jacob Villar 2C » Sun Nov 17, 2019 10:21 pm

Since CCl4 is a symmetrical tetrahedral shape, the dipole moments do cancel out.


Return to “Dipole Moments”

Who is online

Users browsing this forum: No registered users and 1 guest