The purpose of the lab “All in the Family” was to compare the reactivity of the halogens Chlorine‚ Bromine‚ and iodine by observing the reactions between their elemental forms and their ionic forms. To accomplish this experiment‚ we first added a squirt of pet ether to two test tubes. Then‚ we added the same amount of Cl2 to both of the tubes‚ shook the mixtures‚ and recorded the color that resided in each mixture as the initial color. After‚ a squirt of NaBr was added to one test tube‚ and a squirt
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Aspirin Aspirin is a salicylate‚ also known as a non steroidal anti-inflammatory drug (NSAID). It is the generic name of acetylsalicylic acid and is used clinically to treat fever‚ pain and inflammation as it works by preventing the formation of prostaglandin. Prostaglandin is the active agent that is responsible for the sensitisation at the nerve endings. It can be administered orally‚ rectally or by intravenous route. (6) Benzene ring Carboxylic acid Ester Alkane Aspirin has a pKa of 3.49
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The separation scheme was created by centrifuging a controlled sample of one of the ions or anions combined with one of the reagents such as NaCl. It was found that it could be separated out after centrifuging and would result in a sample without the ions or anions if it precipitated. With the data from week one a method of adding the reagents in a certain order would result in the ability to separate all ions or anions out of a solution. Overall‚ knowing how the cations or anions reacted with certain
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There are many chemicals in our world that are soluble‚ however‚ these chemicals have to follow a set of rules to determine how soluble each chemical is and if it is at all. This is what we call solubility laws. These laws show what chemicals are soluble and which ones are insoluble. They also describe what chemicals can be dissolved and what chemicals cannot dissolve. These chemicals are them recorded on Solubility tables which list solubility and how soluble the chemicals are. According to Busch
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Jackson Bellinger “Turning Waste Heat into Power” Physicists at the University of Arizona have discovered a way to convert waste heat back into useable electricity‚ using molecular thermoelectricity. In addition to making many machines much more efficient‚ molecular thermoelectricity would make CFC’s not needed. This new technology makes it possible to convert heat into energy with no moving parts‚ and no pollution whatsoever. Charles Stafford‚ the associate professor of physics at the University
Free Atom Chemical bond Solvent
Once the aspirin is prepared‚ it is isolated from the reaction solution and then it is purified. The aspirin is insoluble in cold water‚ and it is isolated by filtering the chilled reaction solution. Purification is essential to remove any unreacted salicylic acid and acetic anhydride as well as the acetic acid product and phosphoric acid. Acetic anhydride is caused to decompose by the addition of water once the formation of aspirin is complete. C4H6O3 (Acetic anhydride) + H2O (Water) ------------------------->
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Methanolic Extract of Eggplant (Solanum melogena) Peel as a Dye Pigment in Differential Stains Azucena‚ Alexis G. An Official Entry to 2010 Regional Science Fair Cluster 2 Physical Science- Individual Negros Occidental National Science High School January 13‚ 2011 Ma. Melanie P. Romero Research IIB Adviser APPROVAL SHEET The research paper attached hereto‚ entitled‚ “Methanolic Extract of Eggplant (Solanum melogena) Peel as a Dye Pigment in Differential Stains”‚ prepared and submitted
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#15 Synthesis of Ethyl Salicylate from Salicylic Acid ____________________________________________________________ _______________ Purpose: Salicylic acid is converted to the liquid ethyl salicylate by addition of ethanol. Yields of salicylic acid (week 1) and ethyl salicylate will be found‚ as well as the overall yield of the 2-step conversion of acetyl salicylic acid to ethyl salicylate. Introduction: Esters are formed from the reaction of acids and alcohols: O O
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Experiment 15 & 16: Preparation of 1-bromobutane‚ an SN2 reaction Preparation of 2-chloro-2-methylbutane‚ an SN1 reaction Introduction The purpose of this experiment is to synthesize 1-bromobutane from 1-butanol and sodium bromide. In order for this reaction to reach completion there are four major operations that need to be performed. The four major operations include refluxing‚ simple distillation‚ separation‚ and drying. To begin‚ in order for the compounds to react they will be dissolved
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Rate of Evaporation of Different Liquids Objective of the Project This project is of the rate of evaporation of different liquid‚ in which we also discuss the factors which affect the rate of liquid. Introduction When liquid is placed in an open vessel. It slowly escapes into gaseous phase ventually leaving the vessel empty. This phenomenon is known as vaporization or evaporation. Evaporation of liquids can be explained in the terms of kinetic molecular model although there
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