Format for Chemistry Laboratory Report


Not all instructors will require this format. Check with your instructor to determine the format required.

Each experiment is to be handed in as a separate laboratory report.
All experiments done on a particular day are to be stapled together.
Laboratory reports are done in ink or typed, and they are done on loose leaf paper - paper torn from a notebook is not acceptable.
All heading and numbering schemes shown below are to be part of your laboratory report.

Your Name Experiment Title
Date Experiment Done Experiment Number


I: Purpose

The purpose section should explain the reason for doing the experiment. You should state what chemical principles or concepts are being examined. The introduction in the laboratory manual and your textbook should be of help writing the purpose.

II: Procedure

The procedure section should summarize the important activities done during the experiment.

III: Data Table, Data, Observations

This section should contain a neat presentation of your data or measurements, preferably, in tabular form. Your data and observations should be labeled to indicate exactly what the measurement represents. Data is to be listed under each other, not in paragraph form. All measurements should include both the number and the unit of measurement.

IV: Calculations

This section should show all calculations that were needed to arrive at data reported above or data required by questions or calculations. All calculations should be labeled to indicate exactly what data was being calculated or what question was being answered. If there are no calculations, you should include the heading for this section and under it the word NONE should appear. Calculations should be numbered as they are in the laboratory manual.

V: Questions

Any questions posed anywhere in the experiment should be answered in this section. Your answers are to be in complete, correct sentences. If there are no questions or problems, you should include the heading for this section and under it the word NONE should appear. Questions should be numbered as they are in the laboratory manual.

VI: Conclusions

Did you achieve your purpose? Do your data support your purpose? Why or why not? What are sources of error that could have affected your results?