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    How Acetylsalicylic Acid was Discovered Acetylsalicylic Acid in its earliest form was a powder for the bark and leaves of the willow tree. Hippocrates‚ who lived sometime between 460 B.C. and 377 B.C‚ founded it. This “Miracle Drug” that was able to relieve pains was later looked into with further detail by Johann Buchner. He isolated a tiny amount of bitter tasting yellow‚ need- like crystals‚ and called salicin. By 1829 French Chemist Henri Leroux had improved the extraction procedure to

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    Tin and Nitric Acid

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    Jarrett Sears Dr. Hummel Chem 121 2/7/13 A Chemical Reaction between Tin and Nitric Acid Introduction: Finding the products made from the components of tin metal and nitric acid is the ultimate objective of this lab; the formula of the products will be found in the CRC handbook thereafter. Procedure: First‚ obtain a clean crucible‚ and heat it under a Bunsen burner until it is as hot as possible‚ about 15 minutes within a fume hood unit. The Bunsen burner will be used under the fume

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    Victims of an Acid Attack

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    Punished by Acid Several people from the third world become a victim of an acid attack. The victim’s life has changed tremendously‚ which is what the photographer shows with his world-known pictures. On Ebrahim Noroozi’s photoseries you see a mom named Somayeh and her daughter‚ Rana and what acid has done to their faces. Now they most stay by themselves and take care of themselves. It is hard for me to understand some people will walk up to you to pour acid on you. Somayeh looked like an average

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    "The Unknown Southern Land" Even in medieval times there were stories about a large continent in the Southerh Hemisphere. But Europeans had never seen it. They wondered what it was like and whether it inhabited. They called this land terra australis incognita 1 or «the unknown souther land» – Australia. Nowdays when people speak of Australia they can mean three things: 1) Australia as a continent; 2) Australia as an island and 3) Australia as an indenendent country. Australia

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    Acetic Acid and Ink

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    TEABAG EXTRACT AS AN ALTERNATIVE FOR INK An Investigatory Project Chapters 1- 3 Submitted by: Alfonso‚ Manuela Fairbanks Garcia‚ Tonica Paga Cho‚ Jung Hun Lat‚ Manuel Miguel Feliciano November 2013 Chapter I Introduction A. Background of the Study The group will conduct the study because the group noticed that teabag extract is dark in colour and it can be use to make ink‚ and also the group noticed that teabags are made from natural resources. Some kinds

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    Water and Acetic Acid

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    to the appropriate significant figures. 15-1 Molarity Problems: (M = moles/ liter ) 1. What is the molar concentration of a 415 ml solution containing 0.745 moles of HCl? (A: 1.80 M HCl) 2. What is the molar concentration of an acetic acid (CH3COOH) solution containing 3.21 moles in 4.50 liters? (A: 0.713 M) 3. How many moles of KI are present in 125 ml of 0.500 M KI? (A: 0.0625 mol KI) 4. How many moles of ammonia (NH3) are present in .360 L of 2.13 M NH3 solution in water

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    Nahco3 Hydrochloric Acid

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    will show a colour change. After that record the initial reading of the burette and making sure that all your burette readings must be to an appropriate precision. Titrate the contents of the conical flask by adding to it 0.100 mole dm3 hydrochloric acid from the burette. Add the solution slowly. Swire the flask gently to mix the contents at the end indicator turns as define red colour. This is the end point of the titration. Record the final burette reading in your table of result. Repeat the titration

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    Therefore‚ the experiment was performed to conduct quality control analysis on two commercial products to determine the amount of acid or base active in these two products and then compare the results to those of the manufacture. This was done through the preparation of standardized acid solution and standardized base solution‚ and through titration. The purpose of titration was to determine the concentration levels of the commercial products being used.

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    Rain Man Essay

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    Moreover‚ many misconceptions exist regarding people with ASD and before I move on‚ I would like to address some prominent myths about autism. Due to the popular movie Rain Man‚ many people in America and elsewhere believe that every individual with ASD is an Autistic Savant‚ as in they are exceptionally gifted in a specialized field‚ such as artistic ability‚ musical acuity‚ and more (Sicile-Kira‚ 2). This is a falsehood‚ as only ten percent of people with ASD have astounding gifts and are considered

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    Acid-Base Titrations

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    Acid-Base Titrations A Titration of Potassium Hydroxide Phthalate and Sodium Hydroxide Hanna Piper Department of Chemistry‚ SUNY College at Brockport‚ Brockport‚ NY 14420 Chemistry 205.06 Abstract Titrations are used to find the molarity of an unknown solution. A titration begins with an analyte and titrant being used to measure the unknown molarity of the analyte. In the following experiment‚ sodium hydroxide was used as the titrant and potassium hydroxide phthalate was used as the

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