Abstract In this experiment, the reaction kinetics of the hydrolysis of t-butyl chloride, (CH3)3CCl, was studied. The experiment was to determine the rate constant of the reaction, as well as the effects of solvent composition on the rate of reaction. A 50/50 V/V isopropanol/water solvent mixture was prepared and 1cm3 of (CH3)3CCl was added. At specific instances, aliquots of the reaction mixture were withdrawn and quenched with acetone. In addition, phenolphthalein was added as an indicator.
TLC, NMR, and IR spectroscopy were used throughout the process to identify ferrocene and acetylferrocene in addition to evaluating the levels of purity. Evidence: The objective of our experiments was to prepare acetylferrocene from ferrocene. The overall reaction was carried out using 6.1 equivalents of liquid acetic anhydride to 1.8 equivalents of phosphoric acid and concluded with an aqueous workup with NaOH. The initial reaction mixture containing ferrocene, acetic anhydride, and phosphate acid was mixed on a hot stir plate. During this period, reflux was observed, and the mixture appeared dark brown in color.
Summary Determining the concentration of a liquid can be a tricky process involving complex procedures if it were not for science’s ability to test a substance’s absorbency through spectrophotometry. The experiment was carried out to discover the concentration of Red Dye #40 in several common soft drinks. The samples of the dye were diluted, and tested using a spectrophotometer. The absorbencies of these samples were then recorded, and a standard line curve with the concentration equation and R2 value was created with these results. Using the absorbencies of the dye samples, the concentrations of the soda samples were determined using the slope equation provided by the graphing software.
Because it is a tertiary benzylic halide, the reaction is considered an SN1 type. To test the purity, the class then uses a TLC. When one places,” a spot of the substance on the absorbent surface of the TLC plate, the solvent (or solvents) run up through the absorbent,” (Zubrick223). The initial mass of the reactant, triphenylmethyl chloride was 2.006 grams. The experiment yield is 1.589g, which is a 80.3% yield.
Apple Cider Vinegar for BV In imbalance in vaginal bacteria often causes a condition called bacterial vaginosis, or BV. BV is characterized by discharge from the vagina accompanied by several symptoms, including itching, burning sensations, and swelling. Most commonly, BV occurs because the regular acidity of the vagina is disrupted, leading to a lower pH than normal. To remedy this, apple cider vinegar can be applied to the vaginal area. This has been known to restore the normal pH balance in the vaginal area, creating a better environment for good bacteria.
The salsa sauce contains a huge dose of vitamin c, present in the lime juice, tomatoes and onions. Vitamin c acts as an oxidant and helps to protect the heart from any diseases. Vitamin C has good anti-aging properties. Vitamin C is lost easily when exposed to heat but since salsa require no heating process, the vitamin C is well preserves in the meal. The yummy salsa recipe has in it fiber, which stabilizes blood sugar.
Proton pump inhibitors (PPIs) are a group of medicines, such as lansoprazole and omeprazole, that work on the cells that line the stomach, reducing the production of acid. The stomach normally produces acid to help with the digestion of food and to kill germs (bacteria). This acid is corrosive so the body produces a natural mucous barrier which protects the lining of the stomach from being eroded. In some people this barrier may break down and allow the acid to damage the stomach, causing an ulcer. In others, a problem may occur with the muscular band at the top of the stomach (the sphincter) that keeps the stomach tightly closed.
5. Turmeric and ginger. These common kitchen staples also help cure the symptoms and alleviate the pain, inflammation and swelling of the joints as home remedies for gout. It promotes urine flow to easily flush away toxins from the body and prevents it from becoming worse. a.
RESULTS AND DISCUSSION: Graph 1 Calibration curve for Standard Gallic acid A standard curve of gallic acid was constructed to determine the amount of total phenolic contents in the black grams. The equation for the gallic acid was expressed as y= 0.002x (R2=0.973). The results of the study were expressed as gallic acid equivalent (GAE) in μg/ g of dry weight. Single factor experiments Effect of solvent type on extraction of phenolic compounds Selection of extraction solvents is very important as it has important role in the determination of the amount and the type of phenolic compounds that will be extracted. Aqueous alcohols particularly acetone, ethanol and methanol are usually preferred for the extraction of the phenolic compounds from
Balsamic Vinegar Balsamic vinegar is acidic and deeply-pigmented, which means that it can potentially stain your teeth. Even though you should limit your intake of balsamic vinegar as much as possible, it is okay to put in on your salad. The lettuce will put a barrier between your teeth and the balsamic
Objectives In this lab, you will investigate the percent composition by mass of CO2 in Alka-Seltzer® tablets. In addition, you will find out how much CO2 is released into the atmosphere as 2 Alka-Seltzer® tablets chemically react in vinegar. Procedure 250-mL beaker 100-mL graduated cylinder Scale 60 mL of Vinegar 2 Alka-Seltzer® tablets Materials 1. Clean and dry 250 mL beaker. 2.
Fleur de sel is sometimes referred to as the cream of salt because it is harvested from the top layer of salt from evaporated ocean water. Sel gris comes from raking the bottom layer of that salt. Its crystals are smaller and less regular in shape but have an even stronger briny flavor and a pale gray color due to its increased mineral content. Like fleur de sel, sel gris is a moist salt and can provide largely the same texture in dishes. Use it as a finishing salt on meat, in casseroles and on hearty vegetable preparations including those that feature beans and carrots.
The fatty acids in these are then made into fatty alcohols then undergo another process to sulfonate them into crystalline salt. Sodium Laureth Sulphate is Sodium Lauryl Sulphate that has been through a process called ethoxylation. Honestly (October 2015). Stacey Rosenberg (02/11/2014) Benzoyl Peroxide Benzoyl is part of the peroxide family, it is a chemical that has an anti-inflammatory and antibacterial effect but can cause stinging, itching, burning, dehydration and peeling of the skin. It is commonly used for hair bleaching, teeth whitening and acne treatment.
Methodology: The distillation column was analyzed theoretically using McCabe Thiele to establish the number of stages required for separation. The vapor-liquid equilibrium (VLE) data for methanol and 2-propanol was used to plot curves of methanol-vapor fraction versus methanol-liquid fraction, and methanol liquid-vapor fraction versus temperature. III. Results: From the results, the average efficiency was 0.4308, 0.3778, and 0.4956 at 0.57kW supplied (30.58 mL/min Feed; 26.30 mL/min Boil Up), 0.94kW (30.58 mL/min Feed; 52.96 mL/min Boil Up), and 1.27kW (30.58 mL/min Feed; 77.50 mL/min Boil Up) respectively. From the experiment, it was observed that the quality