Benzoic Acid Synthesis

But the difference was no bigger than 0.08, and after the values were rounded the same empirical formula was deduced. So the experiment can be concluded as successful. Evaluation: The method used was simple and easy to follow; however, it did not include how much oxygen was needed to react completely. Also it didn 't mention what magnesium oxide looked like after it finished reacting, so it was a guesswork of determining whether the reaction was finished or not.

3. 233.4 g - 228.9 g=4.5 g ∴ The actual yield was 4.5 g. 4. 4.5 g x 100% = 110% 4.102g 5.

When we tested toluene, triphenylmethan dissolved right away at room temperature and was therefore determined to be not suitable for recrystalization. Had we been required to find a solvent for trimyristin, we would have undergone the same tests with various potential solvents for it. Extraction is the transfer of a solute from one phase to another. Adding a solvent to a solid that only dissolves certain compounds in the

Our reaction yielded 3.696% of phenacetin product. Hence, the formation of phenacetin via acetaminophen synthesis was not a success. In addition, the poor amount of product formed was not white colored crystals, instead the crystals were of black appearance. A main reason to suggest for the unsuccessful completion of phenacetin could be due to the usage of 2 mL 2.5M sodium hydroxide solution (NaOH)/H2O, instead of the recommended ethanolic sodium hydroxide solution, which was mainly recommended because of the stability and

I also used the conventional plot to analyze the saturation change, like the way I learned in lab 12 regarding the question of Gale Bladder and Baby Sue. The approach that best worked for me is the table of values because it is simple, and straight forward. The table does not involve any interpretation; I rather have exact numbers than attempting to guess the numbers on the seating and conventional

TFCH2002 Organic Chemistry II Lab Report Experiment title: A Floral Fragrance, Methyl Benzoate Name: Conor Fitzpatrick Student number: C14740151 Course code: DT422/2 Report submission date: 02/03/16 Aims • To convert benzoic acid and produce methyl benzoate by Fischer esterification. • Learn reaction mechanism involved in esterification. Benzoic acid + methanol  Methyl benzoate + water Introduction

Gathering background information helped me in the process of creating a research plan. My research paper essentially stated that although the dyes in a candle 's wax may have a slight effect on

5-aminotetrazole monohydrate: In a 250 ml round-bottom flask equipped with a condenser for refluxing (90 °C) and a magnetic stirring bar, 5.00 g (5.95 mmol) dicyandiamide (three times crystallized), 7.47 g (11.9 mmol) sodium azide and 11.00 g (17.8 mmol) boric acid and 100 ml of water is added and allowed to reflux for 24 hours, after the completion of the reaction, until the solution pH to about 2 to 3 as hydrochloric acid 37% is added (about 12 ml) Then the reaction mixture was cooled in a refrigerator for 18 hours and the white crystals formed. The mixture was filtered and washed three times with 10 ml of water and and dried in 60 °C for 5 hours and finally 45.8 g of product by it will be obtained. 5-Aminotetrazol monohydrate:

The temperature of the sulphuric acid was not measured throughout the experiment, however the room in which the experiment was conducted was kept constant, so the chance of any large error due to unknown temperature of the sulphuric acid was most likely reduced. The amount of sulphuric acid used was also controlled by measuring 100mL with a 100mL measuring cylinder to ensure that the results would be consistent. The volume of the agar cubes was calculated from the surface area of each agar cube, both before and after they had been in the sulphuric acid. This increased the reliability of the results as it allowed the rate of diffusion of the sulphuric acid into the agar cubes to be calculated more accurately. The concentration of the acid was 0.1M, which was placed in all three agar cubes to maintain consistency of results.

Ignite with a meker burner for about 1 hour. Complete the Ignition by keeping in a muffle furnace at 500 °C to 570 °C until grey ash results. Cool and filter through whatman filter paper No. 42 or its equivalent. Wash the residue with hot water until the washings are free from chlorides as tested with silver nitrate solution and return the filter paper and residue to the dish. Keep it in an electric air oven maintained at 135 ± 2 °C for about 3 hrs.

To a stirred solution of acetanilide (2gm, 0.5moles) in dry acetonitrile (5ml) at 0-5⁰C, TiCl4 (2.8gm, 1.0moles) was added drop wise with stirring and the mixture was stirred at room temperature for 30 min. Then Sodium azide (0.93gm, 0.5 mol.) was added to it and the reaction mixture was heated at 80-90⁰C. After 2 hrs remaining amount of sodium azide (0.93gm, 0.5 mol.) was added to reaction mixture and heating was continued for 4-6 hrs. The reaction was monitored by TLC after 3hrs. Then the reaction mixture was cooled and poured over crushed ice and the product separated out was filtered, washed with water, dried and recrystallized from alcohol. 5-Methyl-1-phenyl-1H-tetrazole (1).

Meanwhile, on our LB/amp plus DNA petri dish we had a lawn of bacteria and the color was almost clear. Our results for this petri dish mean that the bacteria was not killed by the ampicillin. Next, in the LB/amp minus DNA petri dish we observed very minimal amounts of growth. These results mean that we correctly followed the procedures because this petri dish was not supposed to have growth due to the ampicillin. Our last petri dish was minus DNA and lysogeny broth, in this petri dish we saw 7 colonies of bacteria and there were a light yellow color.

The procedure steps were followed as indicated which led to the correct identification of the tree compounds. The experimental melting points of acid and base were fairly close to the theoretical melting point. However the melting points of neutral were not as close due to some impurities in the compound. Determination of melting point for sample #124 acid and base were accurate due to no presence of impurities. The base was correctly identified as 5-chloro-2- methoxyaniline with a

But, however, it did make process to approach the solution. The low standard help the car company to make car that emit less carbon monoxide and sulfur gas. The gas contains less sulfur can help the pollution-control equipment to work more efficient. It reduce the risk of children from getting respiratory

Experimental Clay-catalyzed dehydration of cyclohexanol Cyclohexanol (10.0336 g, mmol) was added to a 50 mL round bottom flask containing five boiling chips, Montmorillonite K10 clay (1.0430 g) was then added to the cyclohexanol and the mixture was swirled together. The flask was then placed in a sand bath and attached to a simple distillation apparatus. The contents of the flask were then heated at approximately 150 °C to begin refluxing the cyclohexanol. The distillation flask was then loosely covered with aluminum foil and the hood sash was lowered in order to minimize airflow. As the reaction continued, the temperature was adjusted in order to maintain a consistent rate of distillation.