Linked Questions

13
votes
3answers
23k views

Can nonpolar molecules exhibit dipole-dipole forces?

Dipole-dipole forces occur when the positive part of a polar molecule is attracted to the negative part of a polar molecule. In a nonpolar molecule, there may still be polar bonds, it's just that the ...
6
votes
4answers
26k views

If CO2 is nonpolar how come much more dissolves in water than O2?

Why is it that $\ce{CO2}$ is considerably more soluble in water than $\ce{O2}$ is? $\ce{CO2}$ is nonpolar but dissolves in water which like $\ce{CO2}$ being nonpolar, doesn't make any sense. Is it ...
5
votes
2answers
62k views

What type of intermolecular forces will dominate Diethyl ether?

Is Diethyl ether (also known as ethyl ether) a polar molecule? What type of intermolecular forces dominate it? Dipole-Dipole Interactions, London Dispersion Forces or Hydrogen Bonding? Please Explain.
4
votes
3answers
632 views

What are dipole moments in a molecule supposed to act upon?

In a $\ce{CO_2}$ molecule, a total of four electron pairs are shared between the carbon and oxygen atoms, such that 2 pairs are shared between the carbon atom and each oxygen atom. Oxygen has a ...
-2
votes
2answers
7k views

How can sulfate be nonpolar covalent if it is a polyatomic ion?

SO$_{4}$$^{2-}$ is a polyatomic ion as well as a nonpolar covalent compound. How can it be ionic and covalent at the same time? Same goes with SO$_{3}$$^{2-}$ (Sulfite). It's a polyatomic ion as well ...
8
votes
1answer
195 views

Does tetrachlorodibenzo-p-dioxin (2,3,7,8) have a nonzero dipole moment?

I've looked at and drawn the structure, and I originally felt that it would be nonpolar - as I believe all the dipoles would cancel out, but I'm not 100% sure. I might be too dependent on the fact ...
-3
votes
2answers
295 views

Why doesn't CO2 repel itself? [closed]

In a molecule like $\ce{CO2}$, the oxygens are more electronegative than the carbon, and so the electron cloud is denser around them. Then, isn't the oxygen going to be a negative dipole? The picture ...
3
votes
3answers
197 views

If carbon dioxide is non polar, why does it react with water?

I’ve read in many places that carbon dioxide forms carbonic acid with water since the carbon is partially positive and thus the oxygen bonds with it. But isn’t carbon dioxide in its entirety non polar ...
0
votes
0answers
113 views

Why is the molecular dipole the main determinant of whether a substance dissolves in another substance?

Consider a covalent molecule such as carbon tetrafluoride. In $\ce{CF4}$, each $\ce{C-F}$ bond is polar covalent. However, this substance is considered overall non-polar because each bond dipole ...
0
votes
1answer
83 views

Why must polar molecules be asymetrical? [duplicate]

As I understand, polarity in molecules comes from the difference in electronegativity or the ability of the atoms to attract eletrons so the electrons spend more time or are more probable to gravitate ...