Analysis of Oxygen Bearing Organic Compounds James Matthew Jocson*‚ Gianvittorio Lanta‚ Chiqui Ann Llamado‚ Jeron Manaig College of Science Department of Biology University of Santo Tomas‚ Manila‚ Philippines Abstract Five oxygen-bearing organic compounds were given namely Methanol‚ 2-propanol‚ tert - butanol‚ formalin‚ and acetone. Different tests were done to each sample to differentiate their characteristics. These test were Dichromate test‚ Tollens Test‚ DNPH test‚ Iodoform Test‚ and Lucas
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Experiment 5 Title : Thin Layer Chromatography Objectives: i. To distinguish polar and non-polar solvents. ii. To familiar with the analysis technique by using the thin layer chromatography. iii. To differentiate the retention factor‚ Rf for different compounds. [pic] Result: |Compound |Distance traveled by the compound | |o-nitroanaline |2.45
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1. (a)Correct the following statements. (i) The melting points of crystalline and amorphous solids are not definite. The melting point of an amorphous solid is not definite. OR The melting point of a crystalline solid is definite. P Ps X solute . Ps P Ps The equation for relative lowering of vapour pressure when solute remains normal is X solute P (iii)The degree of ionization decreases with dilution. The degree of ionisation increases with dilution. (iv) Tertiary butyl halide
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Richard F. Daley and Sally J. Daley www.ochem4free.com Organic Chemistry Chapter 2 Introduction to Organic Nomenclature and Functional Groups 2.1 Drawing Organic Structures 73 2.2 Alkanes 77 2.3 Structural Isomerism 77 2.4 IUPAC Nomenclature 79 2.5 Naming Alkanes 80 2.6 Naming Cycloalkanes 87 2.7 Naming Complex Alkyl Groups 2.8 Functional Groups 97 2.9 Naming Alkenes and Alkynes 2.10 Naming Alkenes‚ Part II 108 2.11 Arenes 109 2.12 Organohalogens 113 2.13 Using Molecular
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reactive than alkyl halides. (b) It can be oxidized to benzaldehyde by boiling with copper nitrate solution. (c) It is a lachrymatory liquid and answers beilstein’s test. (d) It gives a white precipitate with alcoholic silver nitrate (Q.2) Dry ether The reaction RX + 2Na + RX _______________? R-R + 2NaXis called. ( 1 mark ) (a) Sandmeyer’ reaction (b) Fittig reaction (c) Wurtz reaction (d) Williamson’s synthesis (Q.3) Substitution of chlorine takes place readily at higher temperature in
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INTRODUCTION Many salts that have been crystallized from water solutions appear to be perfectly dry‚ yet when heated they discharge large quantities of water. An example can be hydrated copper (II) sulfate. Exactly this salt is used in the described experiment. RESEARCH QUESTIONWhat is the number of moles of water of crystallization associated with one mole of copper (II) sulfate‚ in the hydrate CuSO4 * xH2O (s)? The independent variable in this experiment is sample thermal treatment ( heating and
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Faculty of Science Undergraduate Modular Scheme Session 2010/2011 Semester 1 Level 3 ------------------------------------------------- MODULE: SM0260: Chemistry for Life Sciences ------------------------------------------------- ------------------------------------------------- DATE: 17 January 2011 ------------------------------------------------- ------------------------------------------------- TIME: 14.00 – 16.00 Instructions to Candidates This paper contains
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Column Chromatography ________________________________________________ You have already performed two chromatography experiments: gas chromatography and thin layer chromatography. All chromatography experiments involve passing a mixture of analytes through a system that includes a mobile phase and a stationary phase. The partitioning of the analytes between these two phases determines the rate at which they pass through the system‚ and (in theory) allows them to be separated from one another. Column
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UPSEE - 2009 Full Paper Section-1 Physics 1. If 3.8 × 10-6 is added to 4.2 × 10-5 giving due regard to significant figures‚ then the result will be : 1) 4.58 × 10-5 2) 4.6 × 10-5 3) 4.5 × 10-5 4) None of these 2. A ball is dropped from a bridge at a height of 176.4 m over a river. After 2 s‚ a second ball is thrown straight downwards. What should be the initial velocity of the second ball so that both hit the water simultaneously ? 1) 2.45 ms-1 2) 49 ms-1 3) 14.5 ms-1 4) 24.5 ms-1 3. Which of the
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solvent - Common Solvents Used: Solvent | Formula | Polarity | Boiling Pt. (oC) | Water | H2O | Very Polar | 100 | Ethanol | CH3CH2OH | Polar | 78 | Methanol | CH3OH | Polar | 65 | dichloromethane | CH2Cl2 | Slightly Polar | 40 | Diethyl ether | (CH3CH2)2O | Slightly Polar | 35 | IV. Experimental 0.100 g of powdered impure benzoic acid‚ 1 small piece of boiling chip‚ and 2 mL of distilled water were added respectively into a vial. While swirling
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