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1.
A swimming pool that is 10 ft deep, 200 cm wide, and 7 meters long is filled 1/3 of
the way with Jello (density of 1.53g/cm
3
).
How many kilograms of Jello are needed to
fill the remaining volume of the pool?
2.
Copper is made up of two isotopes, Cu63 and Cu65. Given copper's atomic weight
of 63.546, what is the percent abundance of each isotope respectively?
3. Assume that the freezing point and melting points of alcohol, which are  117
o
C and
78
o
C respectively, are defined as 0
o
A and 100
o
A respectively. What is the equivalent of
200
o
C in
o
A?
4. The total number of atoms represented by Ca(HSO
4
)
2
is?
5. You pass a road sign saying “Athens, Ga 338 Miles.”
If you drive at a constant 70 mi/
h, how many seconds should it take you to reach the University of Georgia?
6. Aspartame, an artificial sweetener, has the molecular formula C
14
H
18
N
2
O
5
. What is the
molecular weight of aspartame?
7. Silicon (Atomic weight 28.0855) has three naturallyoccurring isotopes with isotopic
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 Spring '08
 Isotopes

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