rocks that I like to collect. As I went through high school‚ I settle and wanted to be a doctor due to my strong duty in helping people and my interest in human anatomy and chemistry. But‚ like most pre-med students
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How It Is Synthesized Methamphetamine was first synthesized from ephedrine in Japan in 1893 by chemist Nagai Nagayoshi. In 1919‚ crystallized methamphetamine was synthesized by Akira Ogata via reduction of ephedrine using red phosphorus and iodine. Synthesis is relatively simple‚ but entails risk with flammable and corrosive chemicals‚ particularly the solvents used in extraction and purification; therefore‚ illicit production is often discovered by fires and explosions caused by the improper
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Nucleophilic Substitution Reactions of Alkyl Halides 1. Summary of Experiment In this experiment we will be comparing the both SN1 and SN2 reactions using various compounds and sodium iodide and silver nitrate. We will be comparing the nature of the leaving group (Cl vs Br) in the 1-halobutanes as well as the effect of the structure
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by : Directorate of Education‚ Delhi SOME IMPORTANT REASONING BASED QUESTIONS OF ORGANIC CHEMISTRY 1. Chlorobenzene is less reactive than chloromethane. Ans. In chlorobenzene‚ each carbon atom of benzenering is sp2 hyridised and is electron withdrawing. Chlorine atom donates a lone pair of electron and acquire positive charge. The negative charge is delocalised on ortho and para position by resonance. C-Cl bond acquires partial double bond character and is 169 pm as compared to 17.0 pm in chloromethane
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Level Credit Hours Contact Hours : : : : : CHM 556 Organic Chemistry II Degree 4 3 hr (Lecture) 3 hr (Practical) 3 Core CHM 456 Part Course Status Pre-requisite : : : Course Outcomes : Upon completion of this course‚ students should be able to: 1. Determine functional groups present in organic compounds using Infrared Spectroscopy and interpret Nuclear Magnetic Resonance spectra and relate the information to structural features of organic compounds. State and explain principles governing
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I. Carbonyl Compounds‚ Enols and Enolates. Some of the most suitable reactions of carbonyl compounds contain carbon hydrogen bonds adjacent to the carbonyl group. Such reactions‚ which can be observed as the strength of much synthetic organic chemistry‚ usually result in the replacement of the hydrogen by some other atom or group‚ as in the H-C-C=O -+ X-C-C=O. Transformation of a carbonyl compound to an enol at a suitable rate typically needs either a basic catalyst or an acidic catalyst and
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Recrystallization Experiment 2: Recrystallization & Melting Point • Most important method for the purification of organic solids • Separation of compounds based on differences in solubility between the compound of interest and its contaminants • Basic technique: 1. dissolve impure sample in an "appropriate" hot solvent Part A: Choosing a Solvent Part B: Purification of Phenacetin 2. cool solution slowly to induce crystal growth 3. filter resulting mixture to isolate crystals Reading:
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Experiment 6 titled “Organic Chemistry” and the purpose of this lab is to get familiar with some organic functional group and test certain reactions of selected functional groups. To do the first part of the experiment (combustion test)‚ instructor demonstration in hood‚ and record the observation. Part A (combustion of toluene) pour 1 milliliter of toluene into a evaporating dish and ignite it with a flaming wood splint. Most importantly put the flame with a watchglass. Part B (combustion of ethyl
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Exercise 1 Polymers – An introduction to Organic Chemistry Group 3 Jude Marchoni C. Tampus Meryl Marie Susan Chua Pearl Pontillas Paolo Pepito Gaia Casas I. Abstract: (Paolo) In this experiment we will be testing what would happen to the polymer when we add borax to it. A polymer is a compound made up of large molecules often in a solid state. Polymers are chemically formed by 100 to 10‚000 small molecules called "monomers". Monomers occur in molecular units or patterns
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1.1 CHEMISTRY 2213a ORGANIC CHEMISTRY FOR THE LIFE SCIENCES - organic chemistry is the study of life at the molecular level; to many it is the key to understanding life “The language of chemistry- an international language‚ a language without dialects‚ a language for all of time‚ and a language that explains where we came from‚ what we are‚ and where the physical world will allow us to go” (Nobelist Arthur Kornberg‚ a biochemist‚ 2000) - but its study has been challenging for students for
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