Chemistry.1230L: Chemistry I Lab - Hartman

Lab Reports

Lab reports must be passed in to your instructor in class before the start of the lab class following the class in which the experiment was performed.  Please do not argue about the time: your report must be in your instructor’s hands before lab begins so that the Instructor will be free to discuss the previous week’s experiment. You may not leave reports in your instructor’s mailbox. Your report must be turned in directly to your instructor in the laboratory at the start of the next period. If your report is lost because you turned it in at the wrong place, you will receive zero credit.

The pages of your report must be stapled together (inexpensive staplers are available at the Bookstore): if pages are lost from your report because the pages were not stapled, you will lose all credit for the missing work. There will be a 25-point penalty for multi-page reports submitted without a staple.  Paper clips, tape, etc. are not staples and will be penalized 25%.

Lab reports must contain/observe the following:

  • The original data page taken from your lab manual must be submitted.  You may not use photocopies of the data page. The original data page must be signed by your instructor at the top.  There will be a 25-point penalty applied if the original data page is not submitted or if it is not signed by the instructor.
  • “Data” refers to the measurements you make in the laboratory. The original data you record while in the laboratory must be written legibly in ink. The calculations for the report you perform at home may be in pencil.
  • Every number you record or write must have the units of that number indicated clearly. Problems and numerical calculations must show relevant equations, complete with units for all numbers (even for tabular data in which a unit is in the table heading).
  • Answers and final results should be expressed with the correct number of significant figures and proper units. If an item in the lab manual says “show calculations” and you do not, you will receive zero credit for that item.
  • Any errors in data recording should be crossed out with a single line and the correction written nearby. "White-out" or "Liquid Paper" should never be used and will result in a penalty. Obliterative "scratching out" or erasure of data is not permitted and will be penalized for each occurrence.


Policy on Cheating

Changing of data, copying another student's work, and/or other forms of plagiarism/cheating are cause for dismissal from the course. Cheating of any sort will not be tolerated. Unless specifically announced to the contrary, students may not work with a partner. Each student must do his or her experiment independently. If you need help in writing your report, please seek it out at the Chemistry Help Center during Instructor office hours.

Review and Disposition of Lab Reports

All laboratory reports become the property of the University. Each week you will have the opportunity to review your graded laboratory report and to discuss the grade with your instructor. The graded reports will then be collected again, and will remain in the possession of your instructor. If you wish to keep a copy of your laboratory reports, make a photocopy of them before submitting them to your instructor. The original, and not the copy, must be submitted for a grade.


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Grades will be assigned for each laboratory report on a 100-point basis. For some experiments the overall 100-point grade will include a grade based solely on the accuracy of experimental results: it is useless to "perform" an experiment "correctly" if the results are meaningless. An additional grade, equivalent to one lab report grade, will be provided by your instructor's subjective evaluation of your performance in the laboratory. Your lowest, or one missing (see "Absences" above), grade will be dropped. The final course grade will be calculated by summing all the grades and dividing by the total number of possible points. There is no "scaling" of grades, and no attempt is made to force grades into a "normal" distribution.