A Report On The Reagent

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

Determine limiting reagent H2SO4 + 2 NaOH → Na2SO4 + 2 H2O NaOH H2SO4 Have 1.50g ± 0.67% * 1mol40.0g=0.0366 mol ± 0.67% 0.5 molL *0.02500 L ± 0.24% =0.0013 mol ± 0.24% NaOH is limiting 0.0366 mol ± 0.67% 0.0366 mol NaOH ±0.67% *1 mol H2SO42 mol NaOH= 0.0183 molH2SO4 ± 0.67%0 H2SO4 is limiting 0.0013 molH2SO4± 0.24% *2 mol NaOH1 mol H2SO4 = 0.0026 mol NaOH ± 0.24% 0.0013 mol ± 0.24% There is not enough NaOH to complete the reaction therefore H2SO4 is limiting. Table 2: Summary of

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

go into a reaction must be present in the product. Sometimes the proportions of two reacting molecules aren’t exact. When this happens, there is a limiting reagent and an excess reagent. The limiting reagent dictates how much of the product can be created, or “limits” the product. The opposite of this is the excess reagent. This is the reagent that has an “excess” of unreacted molecules. The amount of each product created can be determined by the amount of each reactant. The theoretical yield is

CuSO4, and 2.0153 grams of iron powder, Fe. The goal of this experiment was to determine the product of copper (II) sulfate with iron. The reaction occurred and 2.4469 grams of solid copper, Cu, precipitated; therefore, showing that the limiting reagent was iron. The iron oxidation state was iron (II) because iron (II) sulfate was formed during the reaction. The percent yield of the reaction was 106.7%. Introduction Literature sources The purpose of this lab was to use techniques of quantitative

specify that each reagent is to be used within its expiration date, and will not be used past this date unless there is a legitimate reason for its continued use. It then goes on to specify that all reagents will follow at least American Chenical Society guidelines for reagent grade chemicals and what chemicals the lab uses. Finally, all chemicals will be checked prior to any case, recorded in the case notes and in the Reagent Daily Use Verification Logbook, & will be replaced if the reagent cannot be used

Triphenylmethanol John Kang Chem 152L Performed: 7/20/04 Date submitted: ________________ Lab Partners: Sang Lee, Vicky Lai TA: John Stanko Abstract: This experiment explored the synthesis of triphenylmethanol through the use of Grignard reagents. The percent yield of the product was 10% on a relatively humid day. The melting point was calculate to be 127.2oC with a literature value of 162oC. An IR spectrum of the product was taken and used for positive identification of the product.

Examination - Advanced Level Chemistry (Salters') - Paper 3 mock. ROBERT TAYLOR U6JW. A Catalyst is a substance that alters the rate of a reaction. The catalyst remains unchanged at the end of the reaction. The process is called catalysis. In this report I aim going to explain the role of catalysts in chemical reactions and their importance in industry. I will also outline the problems associated with the use of some catalysts and discuss, using appropriate examples, new developments in this area

Chemical Composition of Cells Lab Report Tyler Thomason September 14, 2015 Introduction A cell, the building block of all living organisms, is composed of four fundamental biomolecules: proteins, carbohydrates, sugars and lipids. Proteins provide a vast amount of functions cells such as they serve as enzymes, provide structural support to cells, and act as antibodies. Reagents are used to spark a chemical reaction. The reagent used to detect protein traces in a