Save
AP Chemistry
Unit 7: Equilibrium
7.5 Introduction to Solubility Equilibria
Save
Share
Learn
Content
Leaderboard
Share
Learn
Cards (24)
What is solubility typically measured in?
g/L or mol/L
What type of solution has a solute amount equal to its solubility?
Saturated
What is the K_{sp}</latex> expression for
A
g
C
l
AgCl
A
g
Cl
?
K
s
p
=
K_{sp} =
K
s
p
=
[
A
g
+
]
[
C
l
−
]
[Ag^ + ][Cl^ - ]
[
A
g
+
]
[
C
l
−
]
For gases dissolving in liquids, solubility decreases with
temperature
Solubility is equal to the square root of
K
s
p
K_{sp}
K
s
p
.
True
What happens to
K
C
l
KCl
K
Cl
when temperature increases?
K
C
l
(
s
)
→
Δ
T
K
C
l
(
a
q
)
KCl(s) \xrightarrow{\Delta T} KCl(aq)
K
Cl
(
s
)
Δ
T
K
Cl
(
a
q
)
How can complex ion formation enhance solubility?
Forms soluble complex ions
What is the key reaction in the formation of calcium oxalate kidney stones?
C
a
2
+
(
a
q
)
+
Ca^{2 + }(aq) +
C
a
2
+
(
a
q
)
+
C
2
O
4
2
−
(
a
q
)
⇌
C
a
C
O
4
(
s
)
C_{2}O_{4}^{2 - }(aq) \rightleftharpoons CaCO_{4}(s)
C
2
O
4
2
−
(
a
q
)
⇌
C
a
C
O
4
(
s
)
A saturated solution contains the maximum amount of solute that can dissolve at a specific
temperature
The equilibrium constant for the dissolution of an ionic compound is called the solubility
product
For most solids, solubility increases with
temperature
.
True
What is the dissolution of silver chloride (
A
g
C
l
AgCl
A
g
Cl
) represented as?
A
g
C
l
(
s
)
⇌
A
g
+
AgCl(s) \rightleftharpoons Ag^ +
A
g
Cl
(
s
)
⇌
A
g
+
(
a
q
)
+
(aq) +
(
a
q
)
+
C
l
−
(
a
q
)
Cl^ - (aq)
C
l
−
(
a
q
)
For gases dissolving in liquids, solubility increases with temperature.
False
pH affects the
solubility
of salts containing acidic or basic ions.
True
Solubility equilibria are used in selective precipitation to separate
ions
.
True
At 25°C, NaCl has a solubility of
360 g/L
in water.
True
A supersaturated solution is stable and contains no excess solute.
False
What is the relationship between
K
s
p
K_{sp}
K
s
p
and solubility?
S
o
l
u
b
i
l
i
t
y
=
Solubility =
S
o
l
u
bi
l
i
t
y
=
K
s
p
\sqrt{K_{sp}}
K
s
p
A higher
K
s
p
K_{sp}
K
s
p
value indicates greater solubility.
True
Match the concept with its explanation:
Equilibrium Constant (
K
s
p
K_{sp}
K
s
p
) ↔️ Equilibrium constant for dissolution of ionic compounds
Solubility Product ↔️ Alternative name for
K
s
p
K_{sp}
K
s
p
Relationship to Solubility ↔️
S
o
l
u
b
i
l
i
t
y
=
Solubility =
S
o
l
u
bi
l
i
t
y
=
K
s
p
\sqrt{K_{sp}}
K
s
p
What happens to
C
O
2
CO_{2}
C
O
2
when pressure increases?
C
O
2
(
g
)
→
P
C
O
2
(
a
q
)
CO_{2}(g) \xrightarrow{P} CO_{2}(aq)
C
O
2
(
g
)
P
C
O
2
(
a
q
)
What happens to the solubility of salts in acidic or basic solutions?
Increases
Solubility equilibria have applications only in laboratory settings.
False
Which ions are separated in selective precipitation using AgCl</latex> and
A
g
2
C
r
O
4
Ag_{2}CrO_{4}
A
g
2
C
r
O
4
?
Chloride and chromate ions