Question

organic chemistry
loudon
roberts & company publishers
presented by macmillan learning
predict the approximate bond angles in the molecule.

o−n=o angle:
n−c−h angle:

Explanation:

Step1: Analyze N's electron domains

The central N atom has 3 electron domains: 2 double bonds to O, 1 single bond to C. No lone pairs. This is trigonal planar geometry, so bond angles are ~120°.

Step2: Analyze C's electron domains

The central C in $\text{CH}_3$ has 4 electron domains: 3 single bonds to H, 1 single bond to N. No lone pairs. This is tetrahedral geometry, so bond angles are ~109.5°.

Answer:

O−N=O angle: 120
N−C−H angle: 109.5