Textbook Chapters for Exam 2
All of Chapter 6, Chapter 7 sections 16, 8, and 11 (not 7, 9, and 10). Plus Chapter 10 sections 10 and 11. You’re responsible for
any material covered in class whether it was on the homework or not. This review sheet covers most everything we have done.
Also remember that no equations are given on the exams. Values for equilibrium constants are given where needed although
you should know
K
w
at 25°C.
Chemical Equilibrium
• Know how to WRITE the
mass action expression
— same as
equilibrium equation
How does this expression change and the value of
K
when a
reaction is "flipped", doubled, halved?
When is this expression equal to
Q
? When is it equal to
K
?
• What is thermodynamic
K
? How does that relate to
K
p
and
K
c
?
• How does
K
p
relate to
K
c
?
When would they be equal?
• What is the relationship between
±
G
rxn
and
Q
?
between
±
G
0
rxn
and
K
? This is the Chapter 10 stuff in sec
tions 10 and 11 — you might even have to back up a bit and
reread section 9.
• What are the units for an equilibrium constant? There are NO
units. Why? Zumdahl refers to “apparent” units in places, I
prefer to stick with the “true” nounit version.
• Calculations involving the equilibrium constant,
K
• Know how to calculate the equilibrium constant if given equi
librium amounts of reactants and products. This is where you
are given the entire bottom row “e” (final equilibrium con
centrations) of the equilibrium table (ICE Table) that we use.
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 Spring '07
 Holcombe
 Equilibrium, pH, final equilibrium concentrations, equilibrium table, Dr. McCord CH302

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