Exp.11) Identification of unknown ketones. Introduction: Given five samples of a known ketone derivative‚ the purpose of this experiment is to identify which unknown ketone derivative corresponds to the five known samples. In other words‚ using specific methods of compound detection‚ it is possible to match an unknown compound with a known compound because similar compounds will display similar characteristics. In this experiment‚ identification of the unknown ketone is accomplished through thin
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Abstract: The objective of the experiment was to prepare Benzilic acid by multistep synthesis starting with benzaldehyde. In this setup however‚ product of the first step‚ Benzoin‚ is provided thereby omitting the first step involving the conversion of benzaldehyde. For this experiment‚ the microscale techniques of reflux‚ crystallization‚ and melting-point determination were used. Utilizing these techniques a product yield of 93% for benzil and 57% for Benzilic acid was obtained‚ as well as
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rer. nat MOHD TAJUDIN MOHD ALI OBJECTIVE: To separate a mixture of benzoic acid and a neutral compound (triphenylmethanol or 1‚2‚4‚5-tetrachlorobenzene) into its components by extraction and also to get the melting point. THEORY: Extraction is a process of transferring a solute from one solvent to another. In this experiment‚ a mixture of benzoic acid and a neutral compound (triphenylmethanol or 1‚2‚4‚5-tetrachlorobenzene) into its components by extraction. The mixture is dissolved in diethyl ether
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CHM456 ORGANIC CHEMISTRY 1 LABORATORY Contact hours: 3 hours/week Laboratory textbook: Pavia‚ Lampman‚ Kriz and Engel‚ Introduction to Organic Laboratoy Techniques 3rd Edition (2011) ** Students MUST obtain a copy of the textbook Synopsis This is an organic chemistry practical course which reinforce the theory and concepts studied in Organic Chemistry 1 (CHM456). It covers the learning of simple laboratory techniques such as reflux‚ distillation‚ extraction‚ crystallization and melting point
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liquid for extracting organic solutes is diethyl ether. Ether is chemically very stable‚ has a low boiling point and is an excellent solvent for most organic compounds. In this experiment‚ a mixture of benzoic acid and a neutral compound ; triphenylmethanol or 1‚2‚4‚5-tetrachlorobenzene is separated into its components by the process so called extraction. The mixture is dissolved in diethyl ether. 1 M of sodium hydroxide‚ NaOH solution is used to extract the benzoic acid in the form of its water
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TURINYS ĮVADAS 3 1. Filosofijos ir kultūros samprata 4 1.1. Filosofija 4 1.2. Kultūra 4 2. Filosofijos ir kultūros sąsajos 6 3. Filosofijos vaidmuo kultūroje 7 IŠVADOS 8 LITERATŪROS SĄRAŠAS 9 ĮVADAS Požiūris į pasaulį ir žmogaus vietą jame‚ pažiūros‚ žmonių gyvenimo principai‚ įsitikinimai‚ idealai‚ vertybinė orientacija – visa tai vadinama pasaulėžiūra‚ kuri yra kultūrą integruojantis pradas. Kadangi teigiama‚ jog daugybė filosofijos
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Strictly defined‚ the field of international relations (IR) concerns the relationships among the world`s goverments. But these relationships cannot be understood in isolation. They as closely connected with other actors (such as international organizations. multinational corporations‚ and indiciduals); with other social structures (including economics‚ culture‚ and demostic politics); and with geographical and historical influences .IR is a large subject that overlaps several other fields. The
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38kHz IR transmitter circuit Fig. 3: Pin configurations of TSOP1738 and UM66 Fig. 2: Receiver circuit pillars of the gate such that the IR beam gets interrupted when someone is standing at the gate or passing through it. The transmitter circuit (see Fig. 1) is built around timer NE555 (IC1)‚ which is wired as an astable multivibrator producing a frequency of about 38 kHz. The infrared (IR) beam is transmitted through IR LED1. The receiver circuit is shown in Fig. 2. It comprises IR sensor
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Apple strategija Kiekviena kompanija‚ norėdama įsitvirtinti rinkoje turi turėti strategiją‚ kaip tai padaryti‚ ir ne vien vienos strategijos jai užtenka‚ būti lyderiaujančia tarp konkurentų‚ ar kaip patenkinti vartotojų poreikius. Specializuota veiklos strategija Tai tokia strategija‚ kuri leidžia suformuoti sugebėjimus‚ koncentruojant visus organizacijos resursus ir pajėgas bei vadybinę kompetenciją siekiant tapti firma ‚ vienoje veikloje pasiekiančia tobulumo. Apple kompanijos pagrindiniai
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Representative (“IR”) during the period of 12 months from the commencement date of the Agreement is to purchase a team trainer kit and‚ if the IR elects to renew the Agreement‚ the payment of the annual renewal fee. The IR has no further annual financial obligation and in particular has a free choice whether or not to purchase any products or services under this trading scheme. Upon receipt of proper payment by ACN‚ the IR shall be designated as an Independent Representative. The IR shall participate
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