Expert answer:salt reaction lab please answer correctly
Answer & Explanation:Salt Precipitation Reaction Lab.odt
salt_precipitation_reaction_lab.odt
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Salts: Precipitation Reactions Lab Report Lesson 4.06
I.
Objective: you will mix aqueous solutions of differing chemical
natures to observe which do or do not form a precipitate. A
color change or the formation of a precipitate is a clear signal
that a chemical reaction has occurred and a salt has formed.
II.
Question: How do various compounds react to form salts?
III.
Hypothesis: Answer this question…will it be easy to observe
the formation of a precipitate when combining solutions?
(1 Point)
IV.
Procedure:
1.
Place 10 drops of barium nitrate into well 1A of the 24 well
microplate.
2. Place 10 drops of sodium sulfate into the same well
3. Stir. Observe and record any changes in color or the
formation of a precipitate. Put on Data Chart.
4. Repeat Step 1-3 with different chemicals in different wells,
as specified in Table 1.
5. For each combination that gives a precipitate, write the
word equations for the new compounds. Record in correct
column.
Data Table (17 points)
Well #
Soluti
on A
Solution B
Color the
liquid
changes
to
Color of the
Precipitate that is
formed
Reactants that
yielded
the precipitate
1a
Na2SO4
pink
white
Ba
SO4
2a
Ba(NO
3)2
same
Ba
SO4
3a
same
Mg(NO3)2
4a
same
MgCl2
5a
same
AlCl3
1b
Na2SO
Al2(SO4)3
Al2(SO4)3
4
2b
same
Mg(NO3)2
3b
same
MgCl2
4b
same
AlCl3
1c
Mg(NO3)2
2c
Al2(SO
4)3
same
3c
same
AlCl3
1d
MgCl2
2d
Mg(N
O3)2
same
3d
MgCl2
AlCl3
wellplate
1a
Get a
new
KCl
2a
same
Na2SO4
3a
same
NaOH
4a
same
BaCl2
5a
same
MgSO4
1b
MgCl2
Na2SO4
2b
same
NaOH
3b
same
BaCl2
4b
same
MgSO4
MgCl2
AlCl3
MgCl2
Name of Precipitate
1c
Na2SO
NaOH
4
2c
same
BaCl2
3c
same
MgSO4
1d
NaOH
BaCl2
2d
NaOH
MgSO4
Use
a new
wellplate
1a
BaCl2
Mg(NO3)2
2a
same
Na2CrO4
3a
same
Al2(SO4)3
4a
same
K2CrO4
5a
same
AgNO3
1b
Na2CrO4
2b
Mg(N
O3)2
same
3b
same
K2CrO4
4b
same
AgNO3
1c
Al2(SO4)3
Al CrO4
2c
Na2Cr
O4
same
K2CrO4
Na CrO4
3c
same
AgNO3
1d
AgNO3
2d
Al2(SO
4)3
same
3d
K2CrO4
AgNO3
V.
Ba
SO4
Ba OH
Ba
Ba
Ba
Ag
CrO4
SO4
CrO4
Cl
Al2(SO4)3
K2CrO4
Al CrO4
Ag CrO4
Analysis:
1.
List at least two chemical reactions that resulted in a yellow,
orange, or black precipitate. What do these reactions have in
common?(1 point)
2. List at least two chemical reactions that resulted in a white
precipitate. What do these reactions have in common?
(1 point)
…
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