Identifying a constituent of panacetin

Part I Mastering the Operations 1. The Effect of pH on a Food Preservative 2. Recrystallization and Melting-Point Measurement. Synthesis of Salicylic Acid from Wintergreen Oil 5.

Identifying a constituent of panacetin

Lab Quizzes 10 minute quiz will be given at the beginning of each lab. If you are late to lab, a grade of zero will be given on the quiz. No make-ups for missed quizzes are available. Pre-lab write up Failure to have these sections completed before lab will results in the student being dismissed from lab and a grade of zero for the missed experiment.

Title and Date Give the title of the experiment and the date on which it is done.

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Objective In a sentence or two, state the purpose of the experiment. If the experiment is a preparative experiment, the introduction also includes the balanced equation for the reaction. In organic chem, there are different types of experiments: A technique experiment is one in which you are performing a technique for the first time and studying its details, for example, distillation and extraction.

A preparative experiment is one in which a compound is synthesized from other reagents. Physical Properties List the molecular weight, melting point, boiling point, density, solubility, and hazards of all pertinent chemicals used in the experiment.

Or, you can find the information on the Internet see: Hazard and Physical Data for Compounds page. The physical data are most conveniently presented in tabular form, although in a preparative experiment you may put the amounts of reactants and products under the balanced equations for the reaction.

Calculate the amounts of reactants or compounds to be purified in moles and grams or mL as applicable. In a preparative experiment, calculate the limiting reagent and the theoretical yield of the product. Be sure to include your calculations for these values.

Procedure Briefly summarize the procedure to be followed, preferably either as an outline or as a flow chart. You do not need to write out the procedure in complete sentences and do not copy directly from the Lab Manual. All you need is a brief but complete listing of what you plan to do in the lab.

The first time you do a technique, such as distillation, include in the procedure section a description of how to assemble the apparatus and how to conduct the distillation.

In later experiments, it will be sufficient to state only that the liquid was distilled. Data and Observations Your observations of the experiment as it progresses is important, new information.

Write these observations color changes, appearance of crystals, formation of an emulsion, boiling temperatures, test results, etc. Also record the weights of reagents and products and tare weights in this section.

As a guideline, consider that from the procedure and data and observations sections, any chemist should be able to duplicate your experiment. With this in mind, be thorough but include only pertinent information.

For instance, indicate the amount of purified compound that you obtained and how the purity and identity of the compound was assessed. In a preparative experiment, state the percent yield.

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Include and discuss instrument printouts, such as GC traces and IR spectra if you have them. In this section, you can state whether or not the procedure was a good method for making the desired compound; if not, try to make suggestions to improve the method for future experimenters.

Be sure to include a discussion of possible sources of error, and how that error would affect the overall yield. Post-lab Exercises Your assignment will be given in the class.

Exams There will be one midterm and one final exam throughout the semester. All students must take all exams. Policy about late work if applicable Late advance study assignment will not be accepted.

Late lab report will be subject to a penalty of 2 points out of 10 points per lab period. No lab report will be accepted if it is more than one week late. Make up labs No make-up lab will be granted. If you are unable to attend a lab period, the absence will be dropped at the end of the semester.

You will receive a zero for any or all missed lab reports beyond one lab absence allowed in other word, only 9 of 10 labs, including quizzes and post-lab assignments, will be considered for final grade.

You are responsible for getting this information from the instructor or another student before the next lab.Identifying a Constituent of ÒPanacetinÓ amount of finely ground acetanilide,and thoroughly mix portion 4 with an approximately equal amount of finely ground phenacetin.

Laboratories Assignments Administered By the Chemical Technology Program The following is a list of laboratory assignments delivered throughout the Chemical. Identifying a Constituent of “Panacetin” 4. Synthesis of Salicylic Acid from Wintergreen Oil.

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5. Preparation of Synthetic Banana Oil. 6. Separation of Petroleum Hydrocarbons. 7. A Green Synthesis of Camphor. 8.

Operational Organic Chemistry - JohnLehman - - Chemistry - Organic Chemistry (90)

Identification of a Petroleum Hydrocarbon. 9. Note: Citations are based on reference standards. However, formatting rules can vary widely between applications and fields of interest or study. The specific requirements or preferences of your reviewing publisher, classroom teacher, institution or organization should be applied.

Emily Davis Partner: None Chemistry TA: Alma Wellensiek Lab 3: Identifying a Constituent of “Panacetin” 9/15/ Purpose: The purpose of this experiment is to determine the unknown component of Panacetin.

Theory: Panacetin is an analgesic (pain reducing) and antipyretic (fever reducing) drug that is sold in drug stores.

Identifying a constituent of panacetin

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