CHEM 3111 Problem Set 3
Exercises 13.2, 13.11, 13.15
Problems 13.1, 13.5
To be handed in for grading due Friday, Sept. 11:
1. The chart below shows the number and symmetry of infrared active CO stretching absorptions for
common types of metal ca
1. Sodium borohydride NaBH4 is produced from the reaction of sodium hydride NaH with
boron trichloride BCl3 in an inert solvent:
4 NaH + BCl3 NaBH4 + 3 NaCl
What is the rate law for this reaction?
a. rate = k[NaH][BCl3]
1996 Nobel Prize in Chemistry
"for their discovery of fullerenes"
Robert F. Curl, Jr.
Harold W. Kroto
Richard E. Smalley
Why did Robert F. Scott fail (and die) in his attempt
Symmetry Element a geometric entity such as a line, plane or point with
respect to which one or more symmetry operations may be carried out.
Symmetry Operation movement of a molecule (with respect to a
symmetry element) such th
The full point group symmetry for the icosahedron is Ih, which in
addition to the above rotational symmetry elements has the
additional symmetry elements, i, 12S10, 12S103, 20S6, 15 for a
total order of 120.
Polynitrogen: single-bonded nitrogen
Scientists have eagerly studied the behavior of molecular
nitrogen under high pressure for nearly 20 years, searching
for evidence of polymeric nitrogen, a single-bonded form of
Structure and bonding up to now
A chemical bond consists of a shared electron pair in a bonding
orbital formed by overlap of orbitals on the connected atoms
Formed by combination of two atoms each with a singly
Or by combination of a fill
CHEM 3111 Problem Set 1
Textbook: (not to be submitted for grading)
Exercises 2.6, 2.8, 2.11, 2.21,
2.27-2.30, 2.32, 2.33
Due Wednesday, August 31 Turn in this page with your
answer for problem 1.
1. Shown to the right is the
CHEM 3111 Problem Set 2
Exercises 6.1-6.4, 6.7
Problems 6.1, 6.2, 6.4, 6.8
To be handed in for grading due Friday, Sept. 9: answer all questions on these pages in the
1. The following questions refer to the molecular orbital