The existence of the He 2 molecule and its dissociation, on basis of the molecular orbital theory is to be explained. Concept introduction: The electronic configuration for multi-electron diatomic molecule is written using the molecular orbitals, derived from the H 2 + molecular ion. The bond order is calculated by difference between the anti-bonding electrons and the bonding electrons by two. This can be stated as, Bond order = [ ( Electrons in bonding orbitals ) − ( Electrons in anti-bonding orbitals ) ] 2 As the bond order increases, the stability also increases. The bond order is directly proportional to the bond energy and inversely proportional to the bond length. To determine: The explanation regarding the existence and the dissociation of the He 2 molecule.
The existence of the He 2 molecule and its dissociation, on basis of the molecular orbital theory is to be explained. Concept introduction: The electronic configuration for multi-electron diatomic molecule is written using the molecular orbitals, derived from the H 2 + molecular ion. The bond order is calculated by difference between the anti-bonding electrons and the bonding electrons by two. This can be stated as, Bond order = [ ( Electrons in bonding orbitals ) − ( Electrons in anti-bonding orbitals ) ] 2 As the bond order increases, the stability also increases. The bond order is directly proportional to the bond energy and inversely proportional to the bond length. To determine: The explanation regarding the existence and the dissociation of the He 2 molecule.
Solution Summary: The author explains the molecular orbital theory of the He_ 2 molecule and its dissociation. The bond order is proportional to the bond energy and inversely
Interpretation: The existence of the
He2 molecule and its dissociation, on basis of the molecular orbital theory is to be explained.
Concept introduction: The electronic configuration for multi-electron diatomic molecule is written using the molecular orbitals, derived from the
H2+ molecular ion.
The bond order is calculated by difference between the anti-bonding electrons and the bonding electrons by two. This can be stated as,
As the bond order increases, the stability also increases. The bond order is directly proportional to the bond energy and inversely proportional to the bond length.
To determine: The explanation regarding the existence and the dissociation of the
He2 molecule.
LTS
Solid:
AT=Te-Ti
Trial 1
Trial 2
Trial 3
Average
ΔΗ
Mass water, g
24.096
23.976
23.975
Moles of solid, mol
0.01763
001767
0101781
Temp. change, °C
2.9°C
11700
2.0°C
Heat of reaction, J
-292.37J -170.473
-193.26J
AH, kJ/mole
16.58K 9.647 kJ 10.85 kr
16.58K59.64701
KJ
mol
12.35k
Minimum AS,
J/mol K
41.582
mol-k
Remember: q = mCsAT (m = mass of water, Cs=4.184J/g°C) & qsin =-qrxn &
Show your calculations for:
AH in J and then in kJ/mole for Trial 1:
qa (24.0969)(4.1845/g) (-2.9°C)=-292.37J
qsin =
qrxn =
292.35 292.37J
AH in J = 292.375 0.2923kJ
0.01763m01
=1.65×107
AH in kJ/mol =
=
16.58K
0.01763mol
mol
qrx
Minimum AS in J/mol K (Hint: use the average initial temperature of the three trials, con
Kelvin.)
AS=AHIT
(1.65×10(9.64×103) + (1.0
Jimai
For the compound: C8H17NO2
Use the following information to come up with a plausible structure:
8
This compound has "carboxylic acid amide" and ether functional groups.
The peaks at 1.2ppm are two signals that are overlapping one another.
One of the two signals is a doublet that represents 6 hydrogens; the
other signal is a quartet that represents 3 hydrogens.
Vnk the elements or compounds in the table below in decreasing order of their boiling points. That is, choose 1 next to the substance with the highest bolling
point, choose 2 next to the substance with the next highest boiling point, and so on.
substance
C
D
chemical symbol,
chemical formula
or Lewis structure.
CH,-N-CH,
CH,
H
H 10: H
C-C-H
H H H
Cale
H 10:
H-C-C-N-CH,
Bri
CH,
boiling point
(C)
Сен
(C) B
(Choose
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.