The purpose of this experiment was to synthesize triphenylmethanol from a Grignard reagent. The Grignard reaction technique was used in this synthesis but due to the fact that it is such a strong nucleophile and base‚ it was important to prevent water from interfering with the Grignard reaction. Purity of the product was determined by measuring the melting point. Reagent Table: Structure Name Molecular formula Molar mass Density Melting point Boiling Point Diethyl ether C4H10O
Premium Magnesium Oxygen Diethyl ether
Conclusion: ¬¬The goal of the first part of this experiment was to achieve a 50-50 conversion of fluorene to Fluorenone. In order to achieve the goal of the experiment fluorene was oxidized to Fluorenone. The hydroxide ions from the sodium hydroxide in the presence of Stark’s catalyst would be able to de-protonate the acidic fluorene protons. This would result in the formation of a carbanion which attacks the oxygen from the air resulting in the formation of a hydroperoxide and eventually a ketone
Premium Chemistry Hydrogen Chemical reaction
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
Premium
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
Premium
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
Premium Solvent Chemistry Laboratory glassware
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
Premium Distillation Chemistry Benzene
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
Premium Solvent Sodium hydroxide Chemistry
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
Premium
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
Premium International relations Political science Foreign policy
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
Premium Electronics Loudspeaker Infrared