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Question Description


Thefollowing is an outline of what your instructor expects to see in yourlab reports. As long as the order and main titles (presented below inbold type) are present, the style is completely up to each student. Acarbon copy laboratory notebook is required, and all work should berecorded directly in the notebook, not on scratch paper, as the work isperformed. The written laboratory report includes the following areas:

  1. Name,Lab section or day/time and the complete title of the experiment shouldbe written in the provided section on the top of each page.
  2. TheObjective should indicate the purpose of the experiment in 1 to 2sentences be clear and concise. If the experiment involves synthesizing acompound, meaning you make something new, please include a reactionscheme.
  3. A reagent table labeled as Physical and ChemicalProperties of Reagents. Within this table should be the appropriatephysical and chemical properties such as molar mass, melting point,boiling point, density, refractive index, amount needed, and at leastone hazard and safety precaution for each substance. You can find thisinformation in the CRC Handbook of Chemistry and Physics or online at acredible website, such as sigmaaldrich.com or https://sdbs.db.aist.go.jpand the proper reference should be indicated below the table.Calculations of theoretical yield and limiting reagent should be writtenbelow this table if the experiment is a synthesis.
  4. Equipment/Apparatussection will include a list of common glassware or equipment needed,such as spatula, Erlenmeyer flask etc. OR you may be required to drawand label the apparatus primarily used in the experiment of the dayunless the apparatus had been used in a previous experiment, such asdistillation.
  5. Since you will be observing the experiments in avideo format I want you to write the Procedure according to yourobservations and my narration. This way, it will be in your own wordsand in a manner that you understand! Yay! It should, however, be writtensuch that any organic chemist can perform the experiment when usingthese procedures. It may be a flow chart, paragraph, or bullet point asan example. The first time you perform a certain technique, for example,a distillation, you must describe how to set up and perform thedistillation. If a subsequent experiment requires a distillation, youmay simply state that the liquid was distilled.

The above 5sections are called the “pre-lab” and would typically be due uponentering the lab, but in this online format will be submitted with thebelow sections, called the “post-lab” and will include the following:

  1. Dataand Results section is completed during the lab. Include all dataobtained, observations (color changes, emulsions forming, liquiddisappeared, melting point, crystallization), measurements (includingtared masses), and results. Analytical results, such as an NMR spectraor IR should be attached at the end of the report.
  2. Calculations including items such as percent yield, or Rf values etc should be written out completely
  3. TheConclusions section should be used to interpret the data obtained. Youshould summarize your results of the experiment, including data such asyields, mp, bp, purity and how you came to this conclusion, % error,spectral analysis, literature values as well as any other necessaryinformation needed to identify if the objectives of the experiment wereachieved. You may also state whether or not the procedure was a goodmethod for making the desired compound and any suggestions on improvingthe methods for future experiments. Possible sources of error, and howthat error would affect the overall yield are extremely important tocomment on.