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?
1. Calculate the accurate monoisotopic mass (using all 1H, 12C, 14N, 160 and 35CI) for your product using the table in
your lab manual. Don't include the Cl, since you should only have [M+H]*. Compare this to the value you see on
the LC-MS printout. How much different are they?
2. There are four isotopic peaks for the [M+H]* ion at m/z 240, 241, 242 and 243. For one point of extra credit,
explain what each of these is and why they are present.
3. There is a fragment ion at m/z 184. For one point of extra credit, identify this fragment and confirm by
calculating the accurate monoisotopic mass.
4. The UV spectrum is also at the bottom of your printout. For one point of extra credit, look up the UV spectrum
of bupropion on Google Images and compare to your spectrum. Do they match? Cite your source.
5. For most of you, there will be a second chromatographic peak whose m/z is 74 (to a round number). For one
point of extra credit, see if you can identify this molecule as well and confirm by…
Please draw, not just describe!
can you draw each step on a piece of a paper please this is very confusing to me
Chapter 9 Solutions
Student Solutions Manual for Zumdahl/Zumdahl/DeCoste?s Chemistry, 10th Edition
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