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Review Assessment: Homework 3
User
Ellen Theriault
Submitted
2/2/08 9:57 PM
Name
Homework 3
Status
Completed
Score
5.4 out of 6.6 points
Instructions
If typing an answer in the fill in the blank
and the answer needs to be scientific notation then you
must use the carrot symbol and the following spaces: ie. 3.4
x 10^2.
and you are writing in a compound, since we can't write in
subscripts type in the formula as written ignoring
subscripts: ie. Al
2
O
3
should be typed in as Al2O3.
if it is asking for a numerical answer you do NOT have to
type in units.
When calculating molar mass please use the periodic table
on the front cover of your book
Question 1
0.4 out of 0.4 points
How many particles are in 0.3131 mol Fe
2
O
3
?
Selected Answer:
1.886 x 10
23
Fe
2
O
3
particles
Correct Answer:
1.886 x 10
23
Fe
2
O
3
particles
Question 2
0.2 out of 0.4 points
The number of particles in a mole is known as
[x]
, which is
numerically equal to
[y]
per mole.
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View Full Document Specified Answer for: x
Avogadro's number
Specified Answer for: y
6.02 x 10^23
Correct Answers for: x
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This note was uploaded on 04/20/2008 for the course CHM 131 taught by Professor Mcguirk during the Spring '08 term at Central Mich..
 Spring '08
 MCGUIRK
 Chemistry

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