Experiment: Date:
Name Partners Course Section Drawer No.
Laboratory Report Template Instructions
The first 7 pages of this document contain hints & instructions for using the
template and formatting the report. Delete these pages and any unused
procedure pages from the copy being turned in for grading.
Note: Mac users need to purchase “Parallels Desktop” in order to properly read
and edit “Word” and “Powerpoint” files on the Mac.
Add a New Page – place cursor on blank line below last table on page before you
want to add a new page. Click on “Insert” in Menu Bar. Select “Break.” Select
“Page Break.”
Enter Information into “Header” table at top of page
Word 2003 - Click on “View” in Menu Bar; select “Header & Footer.”
Enter required information. Text will flow to to the Header at the top of each
page. .
When finished, click on “View” again and select “Print Layout” to return to
normal data entry.
Word 2007/2010 – Right click in Header box. “Edit Header” box appears. Left
click in “Edit Header” box. Enter required information. Text will flow to the
Header at the top of each page.
When finished, click on “view” in Menu bar. Click on “Print Layout” to return
to normal data entry.
Continue data entry in a table over onto a new page
With cursor inside a table, click on “Table” in Menu Bar.
Select “Table Properties.” Select “Row.”
Under “Options,” click on box to “Allow Row to Break Across Page.”
Experiment: Date:
Name Partners Course Section Drawer No.
Experimental Reactions Page (Stoichiometric Equation, Molar Ratio, Reaction
Mechanism)
This page, which is a Procedure (usually Procedure 3 or 4) is to be included in
any report dealing with a Synthesis Experiment.
It is to be placed on the page following the final computation of the Mole values
and just before the “Limiting Reagent” procedure.
To move the table to a different page, move the cursor over the table until a box
appears in the upper left (or right) hand corner. Right click on this box and
select “Cut.” Go to the page to hold the table and paste it into place.
Theoretical Yield (Mole Table) Summary Table
This table is to be placed on the page following the calculation of “Theoretical
Yield.” Note: Delete the explanatory text on the page as well as the table not
being used.
Adjusting size of cells in tables
Note: The entire template is a series of tables.
If a cell appears to have excess unused space, especially at the top or the bottom
of the table, do the following:
Place cursor in lowest point in cell and backspace through all unnecessary
line breaks to the point where your text ends.
Place the cursor on the bottom line of the cell (a double line will appear).
Move the cursor up until the desired cell size is attained.
Inserting “Tabs” within a Table Cell
Click on a location on the “Ruler” line to insert a “Tab.”
Experiment: Date:
Name Partners Course Section Drawer No.
To move text to a Tab position Press & Hold the “Ctrl” key while pressing
the “Tab” key.
Delete a Table from the report
Move the cursor over the table until a box with an “X” in appears in either
the upper left corner or upper right corner of the table.
Right click on the box.
Select “Cut” to remove the table.
Experiment: Date:
Name Partners Course Section Drawer No.
Lab Report Structure
The Limiting Reagent
Whenever an experiment involves a "Synthesis" of a compound, a series of
calculations must be performed before you begin the experiment (in terms of the
report structure)
These calculations ultimately result in the determination of the "Theoretical
Yield." The steps, i.e., procedures, required to get to the theoretical yield are as
follows:
• Determine the Mass of the first reagent
• Determine the Mass of the second reagent
Note: If the determination of the two masses both involve the same technique,
e.g., weighing on a balance, then a single procedure can be used, otherwise two
procedures.
• Compute the moles of both reagents.
• On the reactions page, set up the Stoichiometric Balanced equation and
determine the Molar ratios between the reactants & products.
• From the "Actual Moles" of reagents used and the Theoretical
Molar Ratio, determine the Limiting Reagent (show the calculations).
• Using the Limiting Reagent and the Theoretical Molar Ratio
determine the Theoretical Yield in grams.
Mixing the Reagents and Initiating the Reaction
Once the Theoretical Yield has been determined for a “Synthesis” experiment,
the report can now focus on the actual experimental procedures.
The initial procedure usually involves obtaining and mixing the reagents.
Following the main reaction, it is usually necessary to perform one or more
procedures to separate the product from the reaction mixture, e.g., Vacuum
Filtration, Liquid / Liquid Extraction, etc.
After separation, additional procedures are used to clean up or purify the
product using Liquid/Liquid Extraction, Recrystallization, etc.
Experiment: Date:
Name Partners Course Section Drawer No.
Identification of an Unknown Compound
For an experiment involving the identity of an Unknown compound, the
Theoretical Yield computations are not involved.
The unknown sample should be considered impure and therefore, the first
procedures in this type of experiment usually involve purification of the sample,
using such techniques as Simple Distillation for liquids or maybe
Recrystallization for a solid.
After purification, the sample is usually subject to a series of tests to provide data
for evaluating its identity and structure, such as Boiling Point, Solubility &
Density relative to water, Refractive Index, Melting Point, IR, NMR, etc.
Procedure Descriptions
In General, a procedure should be started on a “New Page.” Two or more
procedures can be placed on a single page if they can be accommodated in their
entirety, without crowding.
The left side of the page is used to describe the procedure, using complete
sentences in a “Bullet” format.
If the procedure involves a computation, describe and set up the equation being
sure to define the variables used.
Each procedure has a "Results" section on the "right side" of the page. This is
where you report your observations, make the actual calculations, or otherwise
state the results of the procedure.
Calculations for ALL results must be shown.
Note: The results are not analyzed in the “Results” section, just
reported.
Experiment: Date:
Name Partners Course Section Drawer No.
Results Summary
Once all of the procedures are completed and you have accumulated the
experimental results, you then set up a new procedure to summarize the results –
ALL RESULTS - using a "Paragraph" format.
Analysis & Conclusions
After you have summarized the results, the results are then analyzed in the
“Analysis & Conclusions” section with data supported arguments to support any
conclusions you have about the results.
NOTE:
Do not modify any of the table formats. If a cell is not applicable to your
report, leave the cell blank.
Experiment: Date:
Name Partners Course Section Drawer No.
Purpose:
Approach:
References
Text
Web Site URL
Compound
Experiment: Date:
Name Partners Course Section Drawer No.
Unk
Proc # 1 Results
No.
Materials Equipment
Desc:
Equation Setup:
Experiment: Date:
Name Partners Course Section Drawer No.
Unk
Proc # 2 Results
No.
Materials Equipment
Desc:
Equation Setup:
Experiment: Date:
Name Partners Course Section Drawer No.
Unk
Proc # 3 Results
No.
Materials Equipment
Desc:
Equation Setup:
Experiment: Date:
Name Partners Course Section Drawer No.
NOTE: This procedure page is to be numbered and placed in the appropriate
place in the report; normally after the computation of Moles in a “Synthesis”
experiment. Delete this page if not used.
Proc # 4 Experimental Reactions / Molar Ratio
Stoichiometric Balanced Equation (Use Structural Formulas)
Example: Replace with your own reaction – Do not copy reaction from website notes
Molar Ratio
2 → 1 : 1
Reaction Mechanism
Experiment: Date:
Name Partners Course Section Drawer No.
The reaction mechanism may be hand printed in this space or you can use a chemical
drawing program to create the reaction.
http:/www.acdlabs.com (Chemsketch 10.0 - Free Download)
http:/www.cambridgesoft.com (ChemDraw 10.0 - Not sure of cost)
DO NOT USE the REACTION Mechanism in the website notes; you must derive your own
mechanism.
Experiment: Date:
Name Partners Course Section Drawer No.
Proc # 5 Determine Limiting Reagent Results
Materials Equipment
Desc:
Equation Setup:
Proc # 6 Compute Theoretical Yield Results
Materials Equipment
Desc:
Equation Setup:
Experiment: Date:
Name Partners Course Section Drawer No.
Theoretical Yield Summary
Proc # 7 Results
Table
Desc:
NOTE: If this experiment is not a “Synthesis” then DELETE this page
Use one of the tables below to summarize your Limiting Reagent results
The bottom table is only used for the Grignard Experiment in Chem 318
Delete the Table not being used.
Reagent A Reagent B Product C Product D
Balanced
Equation
Molecular
Weight
Actual
Mass (g)
Actual
Moles
Limiting Reagent Summary Table for Grignard Experiment
Interim Interim Final Final
Reagent A Reagent B
Product (C) Reagent Product (D) Product (E)
Balanced
Equation
Molecular
Weight
Actual
Mass (g)
Actual
Moles
Experiment: Date:
Name Partners Course Section Drawer No.
Simple Gas Fractional Gas
Distillation Chromatography Distillation Chromatography
Mole % Mole % Mole % Mole %
Ethyl Butyl Ethyl Butyl Ethyl Butyl Ethyl Butyl
Vol % Vol %
Acetate Acetate Acetate Acetate Acetate Acetate Acetate Acetate
A/B Mixture
— —
(Undistilled)
0 – 95
95 – 105
105 - 130
Experiment: Date:
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Proc # 9 Results
Materials Equipment
Desc:
Equation Setup:
Experiment: Date:
Name Partners Course Section Drawer No.
Proc # 10 Results
Materials Equipment
Desc:
Equation Setup:
Experiment: Date:
Name Partners Course Section Drawer No.
Proc # Results
Materials Equipment
Desc:
Equation Setup:
Experiment: Date:
Name Partners Course Section Drawer No.
Proc # Results
Materials Equipment
Desc:
Equation Setup:
Experiment: Date:
Name Partners Course Section Drawer No.
Proc # Results
Materials Equipment
Desc:
Equation Setup:
Experiment: Date:
Name Partners Course Section Drawer No.
Proc # Results
Materials Equipment
Desc:
Equation Setup:
Experiment: Date:
Name Partners Course Section Drawer No.
Summary of Results:
Analysis & Conclusions:
Experiment: Date:
Name Partners Course Section Drawer No.
Simple Gas Fractional Gas
Distillation Chromatography Distillation Chromatography
Mole % Mole % Mole % Mole %
Ethyl Butyl Ethyl Butyl Ethyl Butyl Ethyl Butyl
Vol % Vol %
Acetate Acetate Acetate Acetate Acetate Acetate Acetate Acetate
A/B Mixture
— —
(Undistilled)
0 – 95
95 – 105
105 - 130
Experiment: Date:
Name Partners Course Section Drawer No.
Literature Summary (Unknowns, Synthesized Compounds)
Unknown
Number
Name (IUPAC)
CAS No.
Synonyms
Melting Point Lit Lit Lit Lit
o
( C) Exp Exp Exp Exp
Boiling Point Lit Lit Lit Lit
o
( C) Exp Exp Exp Exp
Refractive Index Lit Lit Lit Lit
20
(nD ) Exp Exp Exp Exp
Solubility Lit Lit Lit Lit
(Rel to Water) Exp Exp Exp Exp
Density Lit Lit Lit Lit
Rel to Water Exp Exp Exp Exp
Molecular
Formula
Structural
Formula
Experiment: Date:
Name Partners Course Section Drawer No.