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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Bioresource Technology 79 (2001) 207±225 Review paper The production of poly-(c-glutamic acid) from microorganisms and its various applications Ing-Lung Shih *‚ Yi-Tsong Van Department of Environmental Engineering‚ Da-Yeh University‚ 112 Shan-Jiau Road‚ Da-Tsuen‚ Chang-Hwa 51505‚ Taiwan‚ ROC Accepted 9 April 2001 Abstract This review article deals with the chemistry and biosynthesis of poly-(c-glutamic acid) (c-PGA) produced by various strains of Bacillus. Potential applications of c-PGA as
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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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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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specialization‚ division of labour and the most important thing‚ comparative advantage. The next step of a FTA would be a customs union‚ which has a common external tariff. Members of FTA’s are free to set their own external tariff. The TAFTA‚ the Trans-Atlantic Free Trade Agreement‚ is herefore a proposal for a FTA between the US and Europe‚ as shown in Picture 1. Other possible members of this FTA could be the European Free Trade Agreement (EFTA) and the North-American Free Trade Agreement (NAFTA)
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Acids and Bases Shane Purpose- To study the relationship between pH and metabolism. 10/21/13 Materials- see attached Per. D Biology Procedure- see attached Data and Results- see attached Theory- PH stands for the power of hydrogen. People refer to the pH scale as a tool for finding out if a substance is acidic‚ basic‚ or neutral. This scale goes from zero to fourteen. The number seven is neutral. Any number higher than seven on this scale is basic. Any number lower is acidic
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