What is the geometry of the bicarbonate ion, HCO3?

1 Answer
Aug 14, 2017

Bicarbonate anion is trigonal planar with respect to the central carbon atom....

Explanation:

You gots HOC(=O)O. There are three regions of electron density round the central carbon, and VESPER insists that these adopt a trigonal planar geometry to minimize the interaction of lone electron pairs. Each OCO=120 to a first approx.