Use HSAB concepts to make predictions about which member of each
pair should be more stable.
Explain your reasoning in each case.
(a) (PtCl4)2- or (PtF4)2-
(b) [Fe(H2O)6]3+ or [Fe(PH3)6]3+
(c) F3B:THF or Cl3B:THF
(d) (CH3)3B:PCl3 or (CH3)3B:P(CH3)3
(e) (CH3)3Al:pyridine or (CH3)3Ga:pyridine
3. Which is more stable, cis- or trans- 2-butene? Offer an
explanation why? Hint: you might try measuring the distance between
non-bonded pairs of hydrogens. You should also look at the
molecules in space filling mode. The latter method is perhaps most
revealing. The van der Waals radius for a hydrogen atom is
~1.20Å.
4. Is 2-methylpropene more or less stable than the isomers of
2-butene? Offer an explanation why placing two alkyl groups on the
same carbon has a...
1. In no more than 1-2 sentences, describe how each of the
following contributed to the onset of the
financial crisis:
a. Bursting of the housing bubble
b. A global savings surplus
c. Subprime lending
d. Decline in lending standards and securitization
e. Sharp increases in oil prices
Which ion in each pair, forms more labile
complexes?
1-
Li+ or Be2+
2-
Be2+ or Sr2+
3-
Co2+ or Co3+
4-
Zn2+ or Ga3+
5-
Co3+ or Ir3+
6-.
Co3+ or Fe3+
A.
Be2+
B.
Co2+
C.
Co3+
D.
Fe3+
E.
Ga3+
F.
Ir3+
G.
Li+
H.
Sr2+
I.
Zn2+
How much debt is too much for an organization, and
should more users of organizational data use the combined degree of
operating leverage versus operational and/or financial? min 200
words
You have an enatiomeric excess of 2% and have more R than S
isomer. How much R isomer do you have?
What equation is needed for this problem? How do you solve it?
1. How can lysis
occur if a lambda
phage has already
formed a stable
lysogeny?
2. In generalized
transduction, only 1
or 2 progeny phage
may function as
transducing particles. On
the other hand, in
specialized transduction, all
the progeny phage
are transducing particles.
With the aid of
a diagram, explain
this statement.
3. Is the bacteriophage
carrying donor bacterial
DNA (transducing particle)
capable of producing
progeny phage?
1)
Which bone is not part of the axial skeleton? A) Patella
B) Sphenoid
C) Stapes
D) False rib
E) Manubrium
2) The popliteal artery supplies the
A) palmar region.
B) hip joint.
C) ankle joint.
D) knee joint.
E) elbow joint.
3) Which organ is not part of the gastrointestinal
tract?
A) Stomach
B) Esophagus
c)Liver
D) Oral cavity
E)Large intestine