Is H2CO3 a polar molecule?

1 Answer
Aug 22, 2015

Answer:

Yes, #"H"_2"CO"_3# is a polar molecule.

Explanation:

The Lewis structure of #"H"_2"CO"_3# is

employees.csbsju.edu
(from employees.csbsju.edu)

With respect to the carbon atom, this is an #"AX"_3# system,

The geometry about the #"C"# atom is trigonal planar, but the #"C=O"# dipole is not balanced by the #"C-O"# dipoles.

So the molecule is polar.