CHEM 212 DE, Fall 2008 : Gradebook
System Homepage »
Class Homepage »
Student Details » Student Assignment
Details
Welcome Steve Lee-chem212-F08
[ My Profile ]
Maple T.A. - Gradebook
http://mapleta-mef.math.uwaterloo.ca:8081/mapleta/gradebook/gradebook.do (1 of 9) [05/12/2008 4:01:01 AM]
Gradebook
Help
Logout
Assignment detail for Steve Lee-chem212-F08 in On-line Assgt. 3 (Module 3):
Steve Lee-chem212-F08
Login:
ssilee
Email:
[email protected]
ca
Student
ID:
20227515
Assignments
completed:
5
Assignments active:
0
Question
Grade
1
Apply the particle-in-a-box model to the
electrons in the molecule below.
H
2
C(CH)
16
CH
2
What wave length of light
is required to cause a transition from the ground state to the first excited state?
Assume
that the
electrons are confined to a one-dimensional box of
length L, where L is given by the expression below.
L = (9 r
C=C
+ 9 r
C-C
) sin(120)
In the expression above, r
C=C
= 135 pm and r
c-c
= 154 pm.
Enter your answer with three significant figures. Enter 1.23x10
-12
as 1.23e-12.
Your Answer:
8.81E-7 m
Instructors Comment:
1.0
2
If the electron in a hydrogen atom undergoes a transition from an
n
=
7 level to an
n
=
3 level, what is the wavelength of the
radiation emitted? Give your answer accurate to
three significant figures
.
Your Answer:
1.01E-6 m
Instructors Comment:
1.0

This
** preview**
has intentionally

**sections.**

*blurred***to view the full version.**

*Sign up*