Consider 2-methylpentane, (CH3)2CHCH2CH2CH3 (analyzing the
C3-C4 bond):
Draw a Newman projection for the Gauche conformation.
Draw a Newman projection for the Anti conformation.
Draw the Newman projection for the highest energy conformation
of the C3-C4 bond of 2-methylpentane.
Draw the electron-group geometry for HNO3, in which hydrogen is
attached to one of the oxygens and all oxygens are attached to
nitrogen. To simplify, ignore the hydrogen when you name the
molecule's shape. Draw the Lewis dot structure.
Consider the following data on the estimated cost (in millions
of dollars) resulting from traffic congestion for different urban
areas. The following are the data for the 13 largest U.S. urban
areas. Urban Area Total Cost (millions of dollars) New York 16 Los
Angeles 13 Chicago 7 Washington, D.C. 5 Houston 5 Dallas, Fort
Worth 4 Detroit 4 Miami 4 Phoenix 4 Philadelphia 4 San Francisco 3
Boston 3 Atlanta 3
(a) Calculate the mean and standard deviation for this...
How to use clustering operator to figure out results of data on
rapid miner
Dataset from US Airline Sentiment Analysis
Any help would be much appreciated! I've been stuck on this for
a long time. Thanks!
The following table gives the bushels of corn per acre, y
resulting from the use of the various amounts of fertilizer in
pounds per acre, x, produced on a farm in each of 10 years from
1971 to 1980.
Year
n
y
x
1971
1
40
6
1972
2
44
10
1973
3
46
12
1974
4
48
14
1975
5
52
16
1976
6
58
18
1977
7
60
22
1978
8
68
24
1979
9
74
26
1980...
Use the Heisenberg uncertainty principle to estimate the
uncertainty in momentum resulting from confining an electron to an
atom (~10-10 m) and to the size of an atomic nucleus
(~10-15 m). Calculate the corresponding uncertainty in
the energy (in eV) of the confined electron and briefly comment on
the physical implications of your results.
Consider the following molecule. Draw the Lewis Structure and
use that to fill in the following chart:
NO−2
Number of Valence
e- (Whole Structure)
Areas of e- Density
Around Central Atom:
Electronic
Geometry:
# Bonding Areas (Central
Atom):
# Non-Bonding Areas (Central
Atom):
Molecular
Geometry
Bond Angles (Central
Atom)
Polar Bonds?
Polar Molecule?
Any Pi (Double/Triple)
Bonds?
Explain if possible please
Consider the molecule CF3H. Draw the structure for
this molecule, then use it to assess each statement. Select all
true statements.
This molecule is polar because all molecules containing the
highly electronegative F atom are polar.
The bond angles for this molecule will be less than 109.5
degrees.
An electrostatic potential map of this molecule would show a
rainbow of colors with the red end of the rainbow at the H
atom.
This molecule is polar and its dipole runs...
Consider the ground state energy of the hydrogen atom
E0.
Enter the expression you use to verify that the ground state
energy is 13.6 eV? Use fundamental constants e, me,
k and h.
E0 = ?
From a group of 9 freshmen and 11 sophomores five students will
be selected at random. The random variable x represents the number
of freshman selected.
A)give the probability distribution
B)give the probability that more sophomores than freshman are
selected