saldana (avs387) – Post-lab 3 – Lyon – (90255)
1
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print-out
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have
9
questions.
Multiple-choice questions may continue on
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before answering.
001
(part 1 of 2) 10.0 points
Identify the correct net ionic equation for the
formation of copper (II) phosphate precipi-
tate from solution.
1.
2 Co
2+
(aq) + PO
3
-
4
(aq)
→
Co
2
PO
4
(s)
2.
3 Cu
2+
(aq) + 2 PO
3
-
4
(aq)
→
Cu
3
(PO
4
)
2
(s)
3.
2 Cu
2+
(aq) + PO
3
-
4
(aq)
→
Cu
2
PO
4
(s)
4.
Cu
2+
(aq) + PO
3
-
4
(aq)
→
Cu
3
(PO
4
)
2
(s)
5.
Cu
+
(aq) + PO
-
4
(aq)
→
CuPO
4
(s)
6.
2 Cu
2+
(aq) + P3
-
(aq)
→
Cu
3
P
2
(s)
7.
3 Co
2+
(aq) + 2 PO
3
-
4
(aq)
→
Co
3
(PO
4
)
2
(s)
002
(part 2 of 2) 10.0 points
Identify the correct net ionic equation for the
formation of tin (IV) sulfide precipitate from
solution.
1.
Sn
4+
(aq) + 2 S
2
-
(aq)
→
SnS
2
(s)
2.
Ti
4+
(aq) + 2 S
2
-
(aq)
→
TiS
2
(s)
3.
4 Sn
2+
(aq) + 4 S
2
-
(aq)
→
4 SnS (s)
4.
4 Sn
4+
(aq) + 2 S
2
-
(aq)
→
2 Sn
2
S (s)
5.
2 Ti
2+
(aq) + S
2
-
(aq)
→
TiS (s)
003
(part 1 of 4) 10.0 points
In each of the following four situations,
imagine that you have two unlabeled beakers
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- Spring '10
- Lyon
- Sodium, Sodium chloride, Calcium Chloride, Chlorides, Saldaña
-
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