HChemistry 1
HH#5.6
Lewis Structures/Bonding
1-4.
(22) For each of the following molecules or ions: (a) draw a correct Lewis Structure; (b) indicate if it can demonstrate resonance (and
draw one alternate resonance form). For the underlined/bold atom), give: (c) the geometry (see list), d) hybridization, (e) the bond angle(s),
and (f) the formal charge. Lastly, give (g) the number of pi (π) bonds in the structure. Geometries (in alpha-order): bent, linear, octahedral, seesaw, square planar, square pyramidal, tetrahedral, trigonal bipyramidal, trigonal planar, trigonal pyramidal, T-shaped
Cmpd or Ion
a) Structure
b) Res? (Y/N)
+ add’n’l resonance form
c) Geometry
d) hybridization
e) Bond Angle(s)
HNO3
f) Formal Charge
g) π bonds
HOCN
f) Formal Charge
g) π bonds
SF51–
f) Formal Charge
g) π bonds
Cmpd or Ion
CH2NH
5.
(4)
compounds.
a) Structure
b) Res? (Y/N)
+ add’n’l resonance form
c) Geometry
d) hybridization
e) Bond Angle(s)
f) Formal Charge
g) π bonds
What does “VSEPR” stand for? Briefly describe how VSEPR works and what this theory allows us to predict for molecular
6.
(4)
Consider the carbon-oxygen bond in formaldehyde (H2CO) and carbon monoxide (CO). In which molecule is the CO bond
longer? In which is the CO bond stronger? Explain your responses.