Reagent

The First Hour of Preparation I decided to attend an office hour hosted by a teaching intern (TI) at noon. Since it was the first office hour of the day, the TI arrived a few minutes early and set up the room. He turned on the lights and opened the window blinds, which gave the room a more open atmosphere. Five minutes passed and no one arrived so the instructor started flipping through the relevant chapters of the textbook. I was impressed by his dedication- he was keeping his knowledge sharp in

Introduction: The formation of sp2 carbons can be difficult at times because of different reaction environments can cause different outcomes of the product, which generally yields impure products or the wrong products. However, by turning the reagent into a Grignard reagent, it is possible to get a SN2 like reaction to occur most of the time which helps in the formation of certain industrial and pharmaceutical compounds. The Grignard reaction allows sp2 carbons to react with losing its hybridization, and

When forming the Grignard reagent, the solution became brown in color and as it proceeded the solution became lighter. After a week, the solution was pink/red with clear/white crystals. In the addition of HCl, the solution began to become yellow and two layers began to form. The top layer was yellow and the lower layer was clear/white. The final alcohol product yield was calculated to be 88.317 percent by dividing the weight of the product (6.789 g) by the theoretical yield of 7.69 g. When placed

Discussion: There are numerous ways of isolating and purifying a substance, and an investigation of the differences of each procedure were performed. In two different procedures, lead nitrate and potassium iodide were used to isolate and purify pure solid lead iodide, and the differences in the limiting reactant and solid lead iodide was observed. The amount of solid lead iodide was calculated by the measuring the mass of which the solid lead iodide was created in before and after the purification

Results: Limiting Reactant: Eq 1 Limiting reactant = Benzoin Theoretical yield of Benzil: Eq 2 Theoretical Yield Benzil | 0.296 g | Mass of Crude Benzil | 0.188 g | Mass of Final Benzil | 0.127 g | % Yield | 43% | % Recovery | 66% | Table 1: Mass of crude/final Benzil, % yield, and % recovery Percent Yield: % Yield = (Final product/Theoretical product) x 100 Eq 3 = (0.127 g/0.296 g) x 100 = 43% yield Percent Recovery

would be anhydrous and colourless. When NH3 was added to the CuSO4 solution the colour turned dark blue. According to Le Chateliers principle, the reaction shifted towards the products. This is because the addition of a reagent causes the reaction to produce more product and use up reagent. The single displacement of [Cu(H2O)4]2+ to [Cu(NH3)4]2+ lead to excess production of [Cu(NH3)4]2+. The dark blue colour is explained by the replacement of H2O by NH3, where NH3 allows for a greater absorption of yellow

the purpose of this experiment is to prepare a Grignard reagent by reacting with alkyl or aryl halide and to ultimately react the Grignard reagent with carbon dioxide in order to produce carboxylate. The formed carboxylate is then protonated with an acid to produce carboxylic acid that could be used with liquid-liquid extraction to isolate the unknown acid from the other products from side reactions. The final unknown product is identified by measuring the melting point and calculating the molecular

The experiment was composed of a series of five successive reactions that utilize five complementary reagents to produce four different copper compounds before reverting it back to its original form. The first chemical reaction that was completed was an oxidation-reduction reaction between copper (Cu) and nitric acid (HNO3), where copper was the reducing agent, the substance that loses electrons for reduction to occur in another substance, and nitric acid was the oxidizing agent, the substance that

The purpose of this experiment is to prepare a Grignard reagent by reacting with alkyl or aryl halide and to ultimately react the Grignard reagent with carbon dioxide in order to produce carboxylate. The formed carboxylate is then protonated with an acid to produce carboxylic acid that could be used with liquid-liquid extraction to isolate the unknown acid from the other products from side reactions. The final unknown product is identified by measuring the melting point and calculating the molecular

The five reagents that were used in this lab were Ninhydrin, Biuret, Orcinol, I2KI, and Nile blue. Ninhydrin in solution will react with amino acids producing a blue product. In the absence of amino acids, nope color develops. this test is both qualitative and quantitative. the development of a blue color indicates the presence or absence of amino acids and the intensity of that color reflects the concentration of amino acids present in the sample being tested. the next reagent that was used was