Common-Ion Effect
AP Chemistry · Flashcards · Recall
AP CHEMISTRY · FLASHCARDS
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QUESTION
Assuming
[
F
−
]
initial
≫
2
s
[\text{F}^-]_{\text{initial}} \gg 2s
[
F
−
]
initial
≫
2
s
, what is
s
s
s
for
CaF
2
\text{CaF}_2
CaF
2
in
[
F
−
]
[\text{F}^-]
[
F
−
]
using
K
s
p
K_{sp}
K
s
p
?
QUESTION
What is the solubility-product expression for
MX
(
s
)
⇌
M
+
+
X
−
\text{MX}(s) \rightleftharpoons \text{M}^+ + \text{X}^-
MX
(
s
)
⇌
M
+
+
X
−
?
QUESTION
Which ion is the common ion when
CH
3
COOH
(
a
q
)
\text{CH}_3\text{COOH}(aq)
CH
3
COOH
(
a
q
)
is mixed with
CH
3
COONa
(
a
q
)
\text{CH}_3\text{COONa}(aq)
CH
3
COONa
(
a
q
)
?
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ANSWER
CH
3
COO
−
\text{CH}_3\text{COO}^-
CH
3
COO
−
. Both solutions contain the acetate ion.
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