2E. 27

[mayarivers3I]

The question is-- Predict whether each of the following molecules is likely to be polar or nonpolar: (a)C5H5N; (b)C2H6; (c)CHCl3

What do you look at to determine if a molecule is polar or nonpolar?

[Natalie Wang 1B]

If the molecule is asymmetrical, it will be polar. Therefore, for example, CHCl3 would be polar because the H makes it asymmetrical.

[WUng_1D]

A polar molecule is a molecule with a nonzero dipole moment while a nonpolar molecule is a molecule that has no electric dipole moment.

Simply look for dipole moments and see which way they go, depending on the molecule they will either cancel each other out or won't.

[Serena Siddiq 3D]

Nonpolar: You are looking to see if their dipole moments cancel each other out by being across from each other/equal or if it just has no dipoles at all. The charge is distributed symmetrically, if any.

Polar: Dipoles that do not cancel by being across each other/not symmetrically.