Place the following in order of decreasing X-A-X bond angle,
where A represents the central atom and X represents the outer
atoms in each molecule. hcn h2o h3o+
(Please explain how to figure it out)
In the following molecules, predict the geometry, hybridization,
and bond angle for the central atom. Give your answer using
drawings.
a)
H3O
b)
BeCl2
c) BCl3
Place the following compounds in order of
increasing strength of intermolecular
forces.
CS2 I2 NH2CH3
Place the following compounds in order of
increasing strength of intermolecular
forces.
CS2 I2 NH2CH3
CS2 < NH2CH3 <
I2
NH2CH3 < CS2 <
I2
CS2 < I2 <
NH2CH3
I2 < NH2CH3 <
CS2
NH2CH3 < I2 <
CS2
a. Order the following chemical bonds in order of increasing
strength. (Hydrogen Bond, Covalent Bond, Ionic Bond, van der Waals
interaction)
b. What is the pH of a 0.1 mM solution of NaOH?
c. What type of bonds exist in a water molecule? (Polar
Covalent, Hydrogen, Non-Polar Covalent, van der Waals, Ionic
bonds)
Which of the following is the best definition of a corporate
bond?
(a) represents ownership, where a company promises to pay a
certain coupon interest payment every period and $1,000 at
maturity.
(b) represents ownership and provides the holder the right to
vote and a claim on residual cash flows and assets.
(c) an amortized loan that specifies a set payment that is the
same for every year.
(d) a contractual obligation that provides the holder the right
to vote...
The height of a piston, h, in inches, can be modeled by the equation y = 2cos x + 5, where x represents the crank angle. Find the height of the piston when the crank angle is 55°.
Describe the hybridization and bond angle of the
central elements of BeCl2 and NH3. Then mark the structure of BeCl2
as orbital. What are the roles and products of the two compounds
when they react? And the geometry and hybridization of the central
elements?
BeCl2
NH3
Place the following solutions in order of INCREASING normal
boiling point. NOTE: substances that have LDF only have very low
normal boiling points. Use the van’t Hoff factor in the limit of
infinite dilution. There are 7 substances.
NOTE: the order format MUST be: Q < R < S < T,
etc.
0.050 m CaCl2,
0.15
m NaCl,
Cl2,
0.10 m HCl,
0.050 m HCOOH, 0.10
m C12H22O11,
CH3OH