Which of the structures actually bear(s) a positive charge?
2. Which of the structures attached would be trigonal planar?© BrainMass Inc. brainmass.com October 9, 2019, 7:12 pm ad1c9bdddf
Lewis Structures and VSEPR (valence shell electron pair repulsion)
Please see attached file.
1. Both, NH4+ and H3O+ bear a positive charge. How do we know? NH3 is the molecule ammonia. It is neutral. Ammonia is a base. It reacts with acids such as H+ to form the ammonium ion, NH4+. The same thing can be said of water. Although H2O is neutral, it can act as either an acid or a base. In this case, it acts as a base, reacting with H* forming the hydronium ion, H3O+.
If we were to do formal charge calculations, they would go like this:
FC = (group number) - (number of bonds) - (number of unshared ...
The solution answers three questions on lewis structures. Lewis structures and the valence shell electron pair repulsion is analyzed.