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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The trans-Atlantic slave trade in pre-colonial Africa had immense repercussions on the continent’s state formation and the political culture that developed. This triangle trade‚ as it is often referred to as‚ began in Europe. Europeans needed raw materials from the colonies in the America’s in order to keep their economy stable. When the Americans did not produce these materials fast enough‚ or in large enough quantities‚ there was a call for slaves. Enslaving Africans fulfilled this need. All in
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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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Generic name: tranexamic acid General Pronunciation: tran-ex-AM-ikAS -id Trade Name(s) • Cyklokapron • Lysteda Pregnancy Category Category B Ther. class. hemostatic agents Pharm. class. antifibrinolytics plasminogen inactivators Indications • IV: Prevention or reduction of hemorrhage during and following dental surgery in hemophiliacs. • PO: Treatment of cyclic heavy menstrual bleeding. Action Inhibits activation of plasminogen‚ thereby preventing the conversion of plasminogen
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Lisa Ann Gilbert EXP 105 Personal Dimensions of Education Instructor: Julie Nideffer May 27‚ 2013 Four Stages of Transformation Learning Transformative learning is basically changing the way one thinks‚ feels‚ acts‚ and sees life now‚ as opposed to the past. It can have a small or huge impact on the way they see different aspects of their life. The four stages of the transformative learning process are: Recognizing a specific problem – this is when one would decide if there is a need for
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Trans-Sister Radio is about a newly divorced schoolteacher‚ Allison Banks‚ who falls in love with the man who teaches a summer course in which she attends. Dana Stevens‚ the professor she loves‚ is not exactly what he seems from the outside; this well-manicured‚ gentle-faced man is in actuality a woman and he is facing an upcoming sex change. Allison’s daughter Carly and her ex-husband‚ Will‚ try to deal with her new “beau” as best they can. Also it defines the struggles Dana has gone through with
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Checkpoint Chapter 23 1. Give the name and function of each of the four layers if the GI tract. A. mucosa; inner surface for the secretion of digestive end products. B. submucosa: site of glands‚ blood vessels‚ lymph vessels and nerve plexuses. C. muscularis: circular and longitudinal muscles for propulsion and mixing. D. serosa: serous membrane to reduce friction with movement. 2. Where along the GI tract is the muscularis composed of skeletal tissue? Is control of this skeletal muscle‚ voluntary
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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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EXTRACTION OF BENZOIC ACID‚ 2-NAPHTHOL‚ AND NAPHTHALENE FROM UNKNOWN SAMPLE # 131 Douglas G. Balmer (T.A. Mike Hall) Dr. Dailey Submitted 11 July 2007 Introduction: The purpose of this experiment was to separate a sample of benzoic acid‚ 2- naphthol‚ and naphthalene of unknown proportions using a two-base extraction method. The three components of the mixture will react differently to sodium bicarbonate and sodium hydroxide because each of the bases’ conjugate acids has a different pKa. The
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CHAPTER 23 Statement of Cash Flows ASSIGNMENT CLASSIFICATION TABLE (BY TOPIC) Topics|Questions|Brief Exercises|Exercises|Problems| Concepts for Analysis| 1.|Format‚ objectives purpose‚ and source of statement.|1‚ 2‚ 7‚8‚ 12||||1‚ 2‚ 5‚ 6| 2.|Classifying investing‚ financing‚ and operating activities.|3‚ 4‚ 5‚ 6‚ 16‚ 17‚ 19‚24|1‚ 2‚ 3‚ 6‚ 7‚ 8‚ 12|1‚ 2‚ 10||1‚ 3‚ 4‚ 5| 3.|Direct vs. indirect methods of preparing operating activities.|9‚ 20|4‚ 5‚ 9‚ 10‚ 11|3‚ 4||5| 4.|Statement of cash
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