purity of water‚ by determining the concentration of HCl in the water. • Using a pipette and pipette filler‚ we accurately pipetted 25 cm3 of 0.010 mol dm-3 sodium hydroxide solution into a conical flask. • Then we added a few drops of methyl orange indicator and placed it on the white tile. This solution was then titrated with the water obtained from the river. • After we stood the burrette up using a stand and clamp. • We then filled up the burrette to approximately the 0.00 mark
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American Type Culture Collection) is used for the production of Penicillin. Preparation of Different Salts of Phenyl acetic acid. Sodium phenyl acetate For 100 ml preparation‚ few grams of PAA (of known percentage) are dissolved in certain volume of De-Mineralized water. The pH of the solution is maintained between 6.6-7 by adding NaOH in drops. Molecular Weight-159. Potassium phenyl acetate For 100 ml preparation‚ few grams of PAA (of known percentage) are dissolved in certain volume of De-Mineralized
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What is death and what makes death such a mysterious subject? Death is defined as the permanent cessation of vital functions; the end of life. This is very scary when you think about it. This course has helped me understand the subjects surrounding death‚ and the process leading up to my death. “Death‚ dying and bereavement are fundamental and pervasive aspects of the human experience. Individuals and societies achieve fullness of living by understanding and appreciating these realities”. (Despelder
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Abstract: In this experiment‚ the methyl nitrobenzoate was prepared from methyl benzoate‚ concentrated HNO3‚ and concentrated H2SO4 via an electrophilic aromatic substitution reaction. The HNO3 and H2SO4 were combined to form a nitrating solution‚ which was mixed with a mixture of methyl benzoate and H2SO4. Percent yield for the final product was calculated followed by recrystallization and melting point was measured. Introduction: Nitration of Methyl Benzoate is one of the examples of
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EXPERIMENT A PREPARATION OF ASPIRIN Abstract This report gives a detailed account of the experimental preparation of aspirin in a laboratory environment as well as some basic industrial background on the product. It also contains information about safety precautions put in place to ensure the safety of the team who carried out the experiment. All results obtained have been included as well as a detailed analysis of what they represent alongside any improvements to the method used. Introduction
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Examination preparation Being student os college is the dream of so many people‚ only way to be succeed. It is not hard to be college student but it is not easy to get through and graduate from college. There are so many class to take and also pass each examination of each class. Each student has their own way to study and prepare for their examination. The best way to have good preparation of examination is just only two steps.Timing and focusing is 2 major steps that we should know and follow
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Nitration of Methyl Benzoate to form Methyl-m-nitrobenzoate via Aromatic Substitution Linh Ngoc Thuy Nguyen Seattle Central Community College Professor: Dr. Esmaeel Naeemi Date: February 21st‚ 2012 Abstract In this experiment‚ methyl-m-nitrobenzoate‚ followed the electrophilic addition of aromatic ring‚ would be formed from the starting material methyl benzoate and nitric acid‚ under the catalysis of concentrated sulfuric acid. The reaction between nitric acid and sulfuric acid resulted
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approx.15 ml of 1mol/L Na2CO3 solution.Shaked‚drained and discarded the lower layer leaving the ester in the separating funnel. Diagram : Observations : From our results‚the ester we made produced a light banana smell. In this experiment for preparation of an ester as the alcohol used was pentanol and the acid used was glacial acetic acid‚ added conc.sulfuric acid a dehydrating agent used to remove the moisture‚ safety was a priority in this experiment as this were all highly poisonous‚highly
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Interview Project Report Your name: Your partner’s name: PART 1. IntervieweE report Name of the company: Ritz Carlton Note: The company must be the organization you chose for your Media Case Project. Interview preparation Complete the following: Your spokesperson function in the company. Explain why this spokesperson is best suited to handle this specific interview‚ based on the information provided by the journalist. The spokesperson is the CEO because he is the best person to
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the interview. Reviewing your resume in an interview will only result in boring the interviewer‚ inadvertently lowering your chances to become the succeeding candidate. Preparation is the key to success in approaching the opportunity of the job interview. According to article 1‚ there have six key steps in job interview preparation. The first step is know the company. The second step is research the people. The third step is find an insider. The fourth step is know what’s coming. The fifth step
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