As the bead engineer of your starship in charge of the warp drive, you notice that the supply of dilithium is critically low. While searching for a replacement fuel, you discover some diboron, B 2 . a. What is the bond order in Li 2 and B 2 ? b. How many electrons must be removed from B 2 to make it isoelectronic with Li 2 so that it might be used in the warp drive? c. The reaction to make B 2 isoelectroruc with Li 2 is generalized (where n = number of electrons determined in part b) as follows: B 2 → B 2 n + + n e − Δ E = 6455 k J / m o l How much energy is needed to ionize 1.5 kg B 2 to lhe desired isoelectroruc species?
As the bead engineer of your starship in charge of the warp drive, you notice that the supply of dilithium is critically low. While searching for a replacement fuel, you discover some diboron, B 2 . a. What is the bond order in Li 2 and B 2 ? b. How many electrons must be removed from B 2 to make it isoelectronic with Li 2 so that it might be used in the warp drive? c. The reaction to make B 2 isoelectroruc with Li 2 is generalized (where n = number of electrons determined in part b) as follows: B 2 → B 2 n + + n e − Δ E = 6455 k J / m o l How much energy is needed to ionize 1.5 kg B 2 to lhe desired isoelectroruc species?
Solution Summary: The author explains how the electronic configuration for multi-electron diatomic molecule is written using the molecular orbitals.
As the bead engineer of your starship in charge of the warp drive, you notice that the supply of dilithium is critically low. While searching for a replacement fuel, you discover some diboron, B2.
a. What is the bond order in Li2 and B2?
b. How many electrons must be removed from B2 to make it isoelectronic with Li2 so that it might be used in the warp drive?
c. The reaction to make B2 isoelectroruc with Li2 is generalized (where n = number of electrons determined in part b) as follows:
B
2
→
B
2
n
+
+
n
e
−
Δ
E
=
6455
k
J
/
m
o
l
How much energy is needed to ionize 1.5 kg B2 to lhe desired isoelectroruc species?
5. Draw a valence bond orbital (VBT) representation of NH3, ammonia. Use singly
barbed arrows to represent valence electrons.
The sun is a giant nuclear reactor, which emits light (electromagnetic radiation) at a range of
frequencies. We human can only see visible light (400 – 700 nm), because its absorption results in a
conformational change in the retinal molecule, which triggers a neural signal.
a.
What is the frequency of a 500 nm visible photon?
b. How much energy in J does a 500 nm visible photon carry?
A typical chemical bond has an energy of 5x10-19 J. Would a visible photon at 500 nm be
С.
sufficient to break a chemical bond?
d. How about a UV (200 nm) photon? Indeed, UV light can damage DNA, the genetic material in
our body, leading to mutations and possibly cancer.
2. X is isoelectronic with Xe. It is reactive with anions. a. Give the electronic configuration and orbital diagram of X.b. Show its reaction with chloride anion and identify the chemical bond formed.
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