what is thew approximate bond angle around the N atom in HNO2?

http://en.wikipedia.org/wiki/Nitrous_acid

To find the approximate bond angle around the N atom in HNO2, we need to analyze the molecular structure of HNO2 and identify the arrangement of atoms around the N atom.

HNO2 consists of one nitrogen atom (N) bonded to two oxygen atoms (O). The structure can be visualized as follows:

H
|
N=O
|
O

In HNO2, the nitrogen atom is bonded to two oxygen atoms through single bonds. The shape around the central N atom is often determined by the arrangement of electron pairs, which in this case includes two bonding electron pairs and one lone pair on the central nitrogen atom.

The arrangement of electron pairs in HNO2 is known as trigonal planar. A trigonal planar arrangement has bond angles of approximately 120 degrees.

Therefore, the approximate bond angle around the N atom in HNO2 is approximately 120 degrees.