With the Lewis structures for the species NO2, NO2-, NO2 +
Write their formal charge and compare the species NO2- and
NO2+. If the species exhibits resonance, demonstrate the resonant
forms of the species.
The molecule NO2 can form both positive and negative
singly-charged ions.
a. Write the Lewis structures for NO2 and the two ions,
including any resonance structures. Note that NO2 has an odd number
of electrons, which means that we can't follow all the rules in
writing a Lewis structure. So write the Lewis structure that
follows the rules in the best way possible.
b. For each species, explain whether it has a dipole moment.
c. Rank the N-O bonds in...
NO+, NO2-, NO2H, and NO3-.
Based on the Lewis structures, list all of the the N-O bonds
lengths in order of shortest to longest
i) N - O bond in NO2-
ii) N - O double bond in NO2H
iii) N - O bond in NO2H
iv) N - O bond in NO+
v) N - O bond in NO3-
Write 2 possible Lewis structures for the PO43-. The are more than 2 possibilities, but one structure should obey the octet rule for all atoms and the other structure should minimize formal charge. For full credit, you must show the electron count and assign formal charges to each atom in both structures.
Resonance structures are Lewis structures drawn for a molecule
when more than one Lewis structure is needed to explain the
molecular structure. Resonance results in extended
__________?
of some electrons among more than two nuclei of the molecule.
This results in lowering of kinetic and potential energies that
imparts added stability to the molecule.
Note. In covalent bond formation the bonding electrons are
delocalized between only two atoms. Resonance is taking the
delocalization of electrons between nuclei to the next...
a) Write the Lewis structure for the NO3-
ion and include the resonance structures.
b) Assign the Formal Load for each of the atoms in the resonance
structures of the cyanate ion (OCN-). Which one has a greater
contribution to the correct structure of the ion?
c) Draw the Lewis structure (including the resonance structures)
for nitromethane (CH3NO2). In each
structure of resonance, assign the value of the formal charge for
each atom.
The Lewis structure of NO2−
A. The correct Lewis
structure has 1 nitrogen oxygen single bond, one nitrogen oxygen
and a lone pair on the nitrogen. It exhibits resonance.
B. The correct Lewis
structure has 1 nitrogen oxygen single bond, one nitrogen oxygen
and a lone pair on the nitrogen. It does not exhibits
resonance.
C. The correct Lewis
structure has 2 nitrogen oxygen single bonds and 2 lone pair on the
nitrogen. It does not exhibits resonance.
D. The...