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Syllabus for CHEM 1A KUNKEL B M

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19 Jan 2022

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Chemistry and Biochemistry

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KUNKEL B M

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CHEM 1A Full Course Notes

CHEM 1A Full Course Notes

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Office hours: mw 12 1 pm in chem 1202, F 12 1 pm in kerr 1150 or by appointment. Quizzes and exams: there will be 2 midterms, 2 quizzes and a final. No early or make-u quizzes or exams will be given. If it improves your overall course grade, your lowest (or missing) quiz score may be replaced with iclicker points and/or your lowest (or missing) exam score may be replaced with the same percentage you score on the final exam. Grades: grades are determined from your homework, the quiz and exams as follows: Aleks 84 pts, writing 5 pts, quizzes 48 pts, exams 200 pts, final 200 pts = total 537 pts. Final exam: monday june 10 8 11 am. Watch safety video and answer safety questions online (chem. For technical help please do not hesitate to contact aleks tech support by phone or email.

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I need to fill out the table and show the reaction mechanism with all details please. Thank you

In a true science research lab, laboratory procedures do not present themselves in the "cookbook chemistry" fashion that most students have grown to expect. Chances are the chemist will use his/her previous knowledge and experience to develop their own procedure from scratch. If this procedure fails, the hardened chemist will not throw in the towel, but rather will make small adjustments and tweak the procedure until success is achieved. However, the smart chemist will always consult the chemistry literature to see if the procedure, or a similar procedure, has been previously performed and published. Chemists often follow procedures from primary literature sources such as Journal of the American Chemical Society or Journal of Organic Chemistry. These procedures are written with the understanding that the reader has a basic knowledge of laboratory techniques. Many of the specific details, such as the size and type of glassware utilized, along with common-knowledge, step-by-step procedures are omitted. In this experiment you are given a procedure to a Diels-Alder reaction as it may appear in a journal, and you need to be able to apply your chemistry laboratory experience to determine what glassware/equipment you will use. You will work individually on this experiment. Formation of the Diels-Alder Adduct To a solution of 0.3 g anthracene in 3 mL xylene was added an equimolar portion of maleic anhydride. This reaction mixture was refluxed for 30 minutes. The reaction was allowed to cool to room temperature and then chilled in an ice bath for 10 minutes. The observed crystals were collected, washed with cold xylene and dried. The mass, percentage yield, MP, and IR of these crystals was determined. Clearly draw the structure of your product in the space provided and then give the data for each pertinent peak in your IR spectrum. Attach your IR spectrum immediately after this page. Draw a complete reaction mechanism showing the formation of your major product from the starting materials. Make sure to show the flow of electrons by using curved arrows, as well as all charges and lone pairs where appropriate. Show all steps. Do not take shortcuts.

CHEM 1211L Lab Manual- Page 108 Quantitative Chemical Reactions Objective lab is to provide an introduction to the quantitative aspects fcemical reactions, the concept of solubility, making and diluting as they apply to a laboratory molarily, writing ionic equations, and limiting reagent considerations. Procedure ou will be making a set of solutions from the following solid substances: calcium oride dihydrate and sodium carbonate monohydrate. requir Stock Solutions: For each of these compounds, calculate the mass of solid in to make 100 mL of a 0.5 M solution. (Note: make sure to account for the water tne hydrated salts.) Write a procedure for preparing each of these solutions using a 100 mL volumetric flask and the mass of each solid you calculated. These solutions are your stock solutions. Dilutions: Calculate the volume of your 0.5M sodium carbonate stock solution required to make a 100 mL of a dilute solution with a concentration of 0.125 M. Repeat the calculation to determine the volume of calcium chloride stock solution required to make 100 mL of a dilute solution with a concentration of 0.100 M. Write a procedure for preparing each of these dilute solutions from your stock solutions. Specify in your procedure what glassware is appropriate to use to measure volumes and contain the final solution Ask your instructor to check your procedures. Once you have obtained approval, make each of these confusion. you will calculate the actual concentration of the solutions you make. solutions using your procedures. Be sure to label each solution to avoid Also make sure to record, in the data section, the actual masses used as 250 mL Erlenmeyer flask, mix 100 mL each of the two dilute solutions, Record your In a observatio with filter paper dentification. Place the filiter paper with the solid product on a watch glass and place in the oven to dry. Once dry, determine the weight of the solid product. ns. Isolate your solid product by filtration through a Buchner funnel equipped and a water aspirator. Write your initials on the filter paper for later Writing lonic Equations- Based upon your observations, write the balanced chemical reaction for this process in to label the physical states of each reactant. (Note: There is no need to water molecules from the hydrated salts in the chemical equation.) You will certain inlu bde to detemine the idenity of any insoluble products (solids) by interpreting the be able to

Looking for a catalytic hydogenation mechanism of the starting material methyl oleate to the product methyl stearate. A detailed electron pushing mechanism with arrows and the mechanistic steps under each arrow. Please !

CHM 2260 Winter 2018 ORGANIC CHEMISTRY LABORATORY II Reaction Preparation # 7 OBJECTIVE Catalytic Hydrogenation To generate methyl stearate from methyl oleate using a transition metal catalyst with hydroge and rate the efficiency of that synthesis using TLC, melting point, FT-IR, mass, spectra. mass, 'H- and C-NMR REACTIONS Hz, Pd-C 0 PROCEDURE 1. Assemble the hydrogen delivery apparatus as instructed. Get your apparatus approved before continuing. 2. Use a 1 ml syringe to add 1.5 mmol of methyl oleate to the 25 mL round bottom flask already holding a small stir bar, followed by 10 mL of methanol. Weigh out 0.015-0.025 g of palladium on carbon catalyst and add it to the flask using a dry glass funnel. Using a dry funnel helps getting as much of the catalyst as possible into the solution. Then flush residual catalyst into the flask using 5 ml of methanol. CAUTION: Addition of the catalyst occasionally causes a flash. Have a watch glass ready to cover the flask opening should this occur 3. When these steps have been completed, begin flushing your reaction flask with nitrogen.Once the nitrogen balloon is empty, replace it with a hydrogen balloon. Use a 100 mL beaker full of warm water to warm the heterogeneous reaction mixture. You may need to change the water or H2 balloon during the reaction. Continue for 1 h. WORKUP 4. After the hydrogen gas has been consumed, exchange the hydrogen balloon with one filled with nitrogen and flush your apparatus with nitrogen. Add 10 mL of diethyl ether to the reaction mixture to help dissolve the product, which might solidify once heating is stopped. 5. Using a fluted funnel and filter paper, carefully filter the reaction mixture into a clean, dry, tared 50 mL round bottom flask. Using a capillary, take a sample for TLC, then rotovap the product to dryness. 6. Assuming an excess of hydrogen, calculate percent yield of the product. 7. Perform appropriate TLC and melting point analysis on your product. Obtain FT-IR, mass, 'H NMR- and C NMR-spectra for the pure product from your instructor. Assign all peaks to structural moieties in the product. Report this information on your Analytical Data Sheet