How could you extract benzophenone from acetylsalicylic acid? Discuss the neutralization of acid rain. What has been done so far and how effective are the measures? Why are a solution of copper sulfate and sulfuric acid required in corrosion testing? How can propanoic acid be synthesized from an...
Put into a dry 250 mL round-bottomed three-necked flask Add 1.86 g (0.01 mol) ethyl 2-amino-thiazole-5-carboxylate, 7.12 g (0.03 mol) copper sulfate pentahydrate, 3.97 g (0.04mol) sodium bromide and 20 mL of 9 mol/L sulfuric acid solution. Cool the ice-salt bath to -5~-10℃, a...
Method in order to refine hukoidan in the extract of brown seaweed origin is disclosed. Especially, the heavy metal ion, bacterial characteristic and the endotoxin contaminant, and in order to remove the other impurity, the method of refining hukoidan in the extract is disclosed. These methods...
Use320ml trifluoroetate 7 (71g, 0.292 mol) to dissolve,Slow drip plus triangular silicane160ml, 10min drip add room temperature (20 ~ 25 ℃ ) The lower reaction is 12h. Pour into the ice water to extract,Sodium hydroxide solution with4mol/L is adjusted to neutral, ethyl acetate extra...
How could you extract benzophenone from acetylsalicylic acid? How can pentane-2-one be converted to the following compound? Explain what is a fossil fuel and its formation? How could you prepare pentanal from the given starting material? CH3CH2CH2CH2CO2H ...
The modal fabric production process again bypasses the aging process that usually occurs at this point, and this syrupy substance is immediately forced through a spinneret to create fibers. These fibers are then immersed in sulfuric acid, stretched, and formed into yarn. The resulting yarn is ...
These strands are immersed in a vat of sulfuric acid to create filaments, and these filaments are then spun into yarn that can be woven into fabric. Alternatively, bamboo cellulose can also be created with a closed-loop production process. Unlike the process used to create viscose rayon, ...
Halve the plums (over the bowl to catch the juices). The easiest way to remove the pit is to simply cut in half, and twist: Then remove the pit. Toss with approximately 2 tsp sugar, 1 tsp cinnamon, splash of almond extract, and generous splash of liquor. Let sit while you make ...
In a flask, 100 ml of petroleum ether is added, followed by 15 ml of concentrated sulfuric acid (98% concentration). The mixture is stirred at 30℃ and 2000 rpm for 2 hours using an electromagnetic stirrer. After allowing the mixture to settle, the upper layer of petroleum ether is colle...
Chapter 3: Grignard Reaction- Synthesis of Triphenylmethanol and Benzoic Acid What happened chemically when you treated the ether extract with 5% NaOH solution? What did you achieve by doing this? Su How would you convert benzoic acid (C6H5CO2H) to t...