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Unit 8:
Stoichiometry
Name: _______________________
What can we do with stoichiometry?
For generic equation:
R
A
+
R
B
P
1
+
P
2
Given the…
…one can find the…
amount of R
A
(or R
B
)
amount of R
B
(or R
A
) that is
needed to react with it
amount of R
A
or R
B
amount of P
1
or P
2
that will be
produced
amount of P
1
or P
2
you need to
produce
amount of R
A
and/or R
B
you
must use
Governing Equation:
2 patties
+
3 bread
1 Big Mac®
4 patties
+
?
excess
+
18 bread
?
?
+
?
25 Big Macs®
1
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EX.
__TiO
2
+ __Cl
2
+ __C
__TiCl
4
+ __CO
2
+ __CO
How many mol chlorine will react with 4.55 mol carbon?
What mass titanium (IV) oxide will react with 4.55 mol carbon?
How many molecules titanium (IV) chloride can be made from 115 g titanium (IV) oxide?
Island Diagram helpful reminders:
1. Use coefficients from the equation only when crossing the middle bridge. The other six
bridges always have “1 mol” before a substance’s formula.
2. The middle bridge conversion factor is the only one that has two different substances in it.
The conversion factors for the other six bridges have the same substance in both the
numerator and denominator.
2
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 Fall '10
 Sullivan
 Stoichiometry

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