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| Teaching Since: | Apr 2017 |
| Last Sign in: | 364 Weeks Ago, 1 Day Ago |
| Questions Answered: | 12843 |
| Tutorials Posted: | 12834 |
MBA, Ph.D in Management
Harvard university
Feb-1997 - Aug-2003
Professor
Strayer University
Jan-2007 - Present
1. [ 1.5 pts] Given the compound, C2N2:
a. Draw the Lewis structure
b. Determine the hybridization orbitals for both C & N.
c. Determine the number of pi bonds.
Work:
2. [2 pts] Consider the species Cl2+, Cl2, and Cl2–. Which of these species will be paramagnetic? [show work]
A) Only Cl2 D) Cl2+ and Cl2–
B) Cl2+ and Cl2 E) All three are paramagnetic.
C) Cl2 and Cl2–
Work:
3. [ 1.5 pts] Calculate the wavelength, in nm, of the radiation emitted as the electron in a hydrogen atom moves from the n=5 to the n=2 level.
Work:
4. [0.5 pts] Arrange these ions in order of increasing ionic radius: K+, P3– , S2– , Cl– .
Increasing radius
A) K+ < Cl– < S2– < P3– D) Cl– < S2– < P3– < K+
B) K+ < P3– < S2– < Cl– E) Cl– < S2– < K+ < P3–
C) P3– < S2– < Cl– < K+
Reasoning:
5. [ 0.5 pt] In the following Lewis structure for ClO3F, chlorine has a formal charge of ____ and an oxidation number of ____.
A) 7, 7 B) 7, -1 C) 1, 1 D) 1, -1 E) 1, 7
Work:
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