(Your Name)
11/29/12
Copper Cycle Lab Report
(Your lab report will be due by email to tbamannion@gmail.com or on paper by next Friday
12/7)
Abstract
(A summary of your lab report. In one paragraph, summarize what you’ve done, what your results were,
and your conclusion. This is written to let people know what your lab report is about.)
Materials
(A list of all the materials you used in the lab. Be sure to include non-chemical objects such as beakers
and hot plates.)
Copper powder
Sulfuric acid
Nitric acid
Zinc filling
Sodium hydroxide
Water
Beaker
Metal spatula
Graduated cylinder
Filter paper
Funnel
Tongs
Hotplate
Goggles
Erlenmeyer flask
pipette
fume hood
Procedures
(A summary OR word-for-word list of the steps of your laboratory experiment.)
1.
2.
3.
4.
5.
6.
7.
8.
Measured 0.10 g of coppers
Place the copper in a 250 ml beaker
Slowly add 2 ml of concerted nitric acid
Put the chemical in a fume hood
Add 25 ml of water
Slowly add 2 ml of sodium hydroxide
Put the beaker on a hot plate and heat it
Let the beaker cool
9. Poor the chemical on filer paper
10.Scrape the solid into a 100 ml beaker
11.Add 15 ml of sulfuric acid
12.Measure 0.1 g zinc
13.Pour it into the beaker and ad 10 ml of water
Data
What you did
Chemical added
What you saw
(observations)
Got copper from the
teacher
Added Nitric acid
Cu (s)
Added sodium
hydroxide
NaOH(aq)
Reddish brown
powder
Yellowish brown gas
and it had a blue
liquid
Blue liquid with a
dark blue cloud
Added heat to it
HNO3 (aq)
----
Added sulfuric acid
H2SO4 (aq)
Add zinc
Zn (s)
Black/green/blue
solid in the liquid
Blue liquid
Bubbled and a
reddish brown solid
appeared
Chemical Formula
and Name of copper
compound
Cu (s)
Solid copper
CuNO3(aq)
Copper nitrate
solution
Cu(OH)2(aq)
Copper hydroxide
solution
CuO (s)
Copper oxide solid
CuSO4 (aq) copper
sulfate solution
Cu (s) copper solid
Where is the
copper?
In the copper
powder
In the copper nitrate
solution
In the copper
hydroxide solution
In the copper oxide
solid
In the copper sulfate
solution
In the copper solid
Analysis
A summary of the data table/diagram in words, in a paragraph. Your paragraph should be
written like:
We started with copper powder and added nitric acid. A brown gas (nitrogen dioxide)
escaped and the blue solution that was left was copper nitrate. After we added sodium
hydroxide and the liquid turned light blue with a dark blue cloud at the bottom and we were
left with copper hydroxide solution. Then we put the beaker on a hot plate and the solid turned
a green color in the liquid and we were left with copper oxide solid. Next we added sulfuric acid
and the liquid turned blue and the last thing we were left was copper sulfate solution. The last
thing we did was add zinc and it bubbled and a reddish brown solid appeared and we were left
with copper solid.
Discussion
(Answer the following questions in full sentences)
1.
What happened to the copper in this lab? Did it disappear or was it destroyed?
2.
3.
4.
5.
6.
7.
Did the copper always look the same? Why do you think that was?
What types of compounds are Cu(NO3)2 , Cu(OH)2 , CuO , CuSO4 ?
What element is the cation for each of these compounds?
Honors/Extra Credit: What charge does the cation have? How do you know?
What happens to the anion? Is it always the same?
Honors/Extra Credit: What type of chemical reaction is it when the ions switch
places? (This will require online research).
Honors/Extra Credit: Why are the formulas for copper nitrate and copper
hydroxide written with parentheses and a 2 like this: Cu(NO3)2 , Cu(OH)2 ?
Conclusion




(Answer the following questions in paragraph form)
What happened to the copper in this experiment?
Why is this laboratory experiment called the copper cycle? Because you start with
copper and you end with copper.
Were new atoms created and destroyed or did something else happen?
What does that tell you about what happens to all elements/atoms when they are
involved in chemical reactions?
(Your lab report will be due by email to tbamannion@gmail.com or on paper by next Friday
12/7)
Copper Cycle Lab Report
Category
Advanced 8
Proficient 6
Abstract
Abstract is a thorough summary Abstract covers all aspects of the Abstract covers only some
of the lab report.
lab report but is not thorough.
aspects of the lab report.
Abstract does not cover that
many aspects of the lab
report.
Materials
All materials are listed, both
chemicals and non-chemicals.
Most materials are listed.
Some materials are listed.
Little or no materials are
listed.
Procedure
All procedures are written.
Most procedures are listed.
Some procedures are listed. Little or no procedures are
listed.
Data
Data table is filled in completely. Data table does not have
subscripts written properly.
Analysis
The analysis summarizes the data The analysis summarizes most of The analysis summarizes
in paragraph form.
the data.
some of the data.
Discussion
The discussion questions are
answered thoroughly and
correctly.
Conclusion
The conclusion section includes a The conclusion section includes
conclusion about the lab and
conclusions just about the lab.
elements in general.
Spelling,
Punctuation,
Grammar
There are no spelling,
punctuation, or grammar
mistakes.
There are few spelling,
punctuation, or grammar
mistakes.
On Time
The lab report is turned in on
time
The lab report is 1 day late.
The discussion questions are
mostly answered correctly.
Developing 4
Data table is missing some
information.
Beginning 2
Data table is mostly
incomplete.
The analysis summarizes
little or none of the data.
The discussion questions are The discussion questions are
somewhat answered
mostly answered
correctly.
incorrectly.
The conclusion section does
not make real conclusions
about the lab.
There are some spelling,
punctuation, and grammar
mistakes.
Grade _______ / 72
There are many spelling,
punctuation, and grammar
mistakes.
The lab report is more than
1 day late.