Experiment 2: IDENTIFICATION OF UNKNOWNS BY TLC AND MP IN COMBINATION Introduction: Thin layer chromatography (TLC) is one of the most valuable techniques in organic chemistry. This is a best method of separating and identifying mixtures of two or more compounds. The separation is accomplished by the distribution of the mixture between two phases: one that is stationary and one that is moving or mobile. Chromatography works on the principle that different compounds will have different
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FIRE RESISTANT BALLOON: Materials - 1 matchbox - 1 candle - 1 yellow colored balloon - 1 blue colored balloon - Half a cup of water Procedure: 1. For this experiment‚ the independent variable is whether the balloon is filled with water or not. The dependent variable is what happens to the balloon when it is placed above the lit candle. This is determined by observing the balloon. The constants (control variables) are how much the balloon is inflated and the amount
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process of distillation. Distillation is the separation of volatile substances mixed with nonvolatile substances by boiling the mixture to alter the phase of the volatile substance. The researchers used the simple distillation set up to conduct the experiment. 25 ml of The Bar Vodka was used and 7 ml of distillate was collected before a temperature of 95 degrees Celsius was reached. Collected distillate was then subjected to a flammability test to confirm ethanol content. The percent ethanol was computed
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requirements contained in the Health & Safety at Work etc. Act 1974. Specifically the policy should contain :- a) a General Statement of commitment to H&S‚ signed by Head/Chair of Governors or indicating that it has been endorsed by the committee of the Governing Body which has responsibility for H&S; b) details of individual responsibilities for H&S‚ under a heading of Organisation‚ together with a diagrammatic representation of reporting lines; and c) the Arrangements in place to ensure safety
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Austin Vandermey GS-1140 April 4th‚ 2015 Experiment We as a society have one big problem on our hands. This problem is sleep deprivation because there are not enough hours in the day to get stuff done. Between work‚ school‚ family‚ and leisure it seems like we do not have enough time to get are daily tasks done let alone have time for sleep. It is recommended by the U.S Department of Health that people need a solid eight hours of sleep to maintain good health. I don’t know about you
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EXPERIMENT 5 REDOX TITRATION: TITRATION USING SODIUM THIOSULPHATE Objectives 1. 2. To prepare a standard solution of potassium iodate for use to determine the concentration of sodium thiosulphate solution accurately. To acquire the proper techniques of carrying out a titration. Introduction Redox titrations using sodium thiosulphate as a reducing agent is known as iodometric titration since it is used specifically to titrate iodine. The reaction involved is: I2 + 2Na2S2O3 I2 + 2S2O322NaI + Na2S4O6
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Experiment : 1 Tittle : Preparation of bis(acetylacetonato)copper(II) complex Objective : To synthesis the bis(acetylacetonato)copper(II) complex Introduction : A complex ion is usually form with high charge density metal ion as a central and formation of coordinate covalent bond (dative bond) with high electron molecules or ions. These molecules or ions are functioning as ligands (electrophile in organic compounds). They are easily attracted by electrophile (electron deficiency
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The purpose of this experiment was to study the different types of chemical reactions using physical and chemical properties and balanced chemical equations. There are four different types of chemical reactions decomposition reactions‚ single displacement reactions‚ synthesis reactions‚ and double displacement reactions. A decomposition reaction happens when a compound breaks into two or more elements or compounds. Generally‚ for decomposition reactions heat‚ energy‚ light or electricity is needed
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RIGHTS OF AN ACCUSED: ‘DOUBLE JEOPARDY’ CONTINOUS ASSESSMENT-III FOR CONSTITUTIONAL GOVERNANCE SUBMTTED BY: Wayne Rooney SUBMITTED TO: PROF. K.L. BHATIA INTRODUCTION ________________________________________________________________ It is a well-settled principle of law that a man must not be put twice in peril for the same offence or must not be punished for the same offence. Our Indian Constitution guarantees the aforementioned right under Article 20(2) of the Constitution1 along
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Chapter 2 THE SYNTAX AND SEMANTICS OF DETRANSITIVE VERBS THE PREPOSITIONAL DATIVE CONSTRUCTION AND THE DOUBLE OBJECT CONSTRUCTION 0.1. Introduction The de-transitive verbs we are concerned with in this chapter are verbs of the type give‚ send‚ promise‚ bring‚ etc.‚ which take two internal objects realized either as a DP ^ PP sequence or as a DP ^ DP sequence: (1) a. Sue gave a book to Bill b. Sue gave Bill a book The construction illustrated in (1a) is called the to-dative construction
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