| |Structure and Preparation of Alkenes. | |Elimination Reactions | Summary Alkenes contain the C=C functional group which can be prepared by 1‚2-elimination reactions such as: • dehydration of alcohols (- H2O) or • dehydrohalogenation of alkyl halides (- HX). Zaitsev’s rule indicates that the preferred product is the more highly substituted‚ and therefore more stable alkene. But the rule is not always obeyed
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a C-H bond‚ a C-D bond will vibrate where in the infrared spectrum? A. Higher molecular weight B. Lower molecular weight C. Lower wavenumbers D. Higher wavenumbers 5. Why does an alkyne carbon-carbon bond vibrate at a higher wavenumber
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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
Free Atom Chemical bond Electron configuration
into three classes: alkanes (e.g. methane‚ ethane and propane) have only single bonds‚ and are said to be saturated; alkenes (e.g. ethene and propene) and alkynes (e.g. ethyne) have carbon-carbon double or triple bonds‚ and are said to be unsaturated. Aromatic hydrocarbons are cyclic compounds whose structure is related to that of benzene‚ with six-electrons in a six-membered ring. For this experiment‚ hexane will be used as an example of saturated hydrocarbons (alkanes)‚ cyclohexene will be
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UniKL MICET TRANSFER DEGREE PROGRAM 1ST YEAR CHEMICAL ENGINEERING TECHNOLOGY Summary of Units (Modules) Module Subjects Credits Semester Offered CPE 1002 Chemical Engineering Design Chemical Process Principles 1 3 1 Chemical Process Principles 2 3 2 Engineering Design 3 2 CPE 1003 Fluid Mechanics and Thermodynamics Fluid Mechanics 3 2 Chemical Engineering Thermodynamics 3 2 CPE 1004 Chemical Engineering Science Physical Chemistry 3 1 Chemical
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Chapter 1 MULTIPLE CHOICE QUESTIONS Topic: Atomic Orbitals 1. A) B) C) D) E) In quantum mechanics a node (nodal surface or plane) is: a place where Ψ is negative. a place where Ψ is positive. a place where Ψ = 0. a place where Ψ2 is large. a place where Ψ2 is negative. Ans: C Topic: Atomic Orbitals‚ Molecular Orbitals 2. When the 1s orbitals of two hydrogen atoms combine to form a hydrogen molecule‚ how many molecular orbitals are formed? A) 1 B) 2 C) 3 D) 4 E) 5 Ans:
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IGSCE Chemistry Notes Oxides Oxides are used to determine whether an element is a metal or a non-metal. Most non-metals are classed as acidic oxides. While most metals are classed as basicoxides. Acidic Oxides * Reacts with water to form acids * Neutralises alkaline solution to form salt + water Basic Oxides * Neutralises acidic solutions to form salt + water Amphoeteric Oxides * These are non-metals which display both acidic and basic properties Alkaline Oxides * Reacts
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Subject Content Most of the objectives specified in this section relate to Knowledge with Understanding‚ although some indication has been given as to where the skills of Handling Information and Solving Problems may be developed. Teachers are reminded that‚ in the written papers‚ 40% of the marks are allocated to these higher ’thinking’ skills. In almost every section‚ students should therefore be given practice at dealing with unfamiliar situations so that these higher thinking skills can be developed
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capable of being converted to metal salts‚ alkyl halides‚ esters‚ aldehydes‚ ketones‚ and carboxylic acids. In this experiment the conversion from alcohol to alkyl halides was investigated. Alkyl halides are a group of chemical compounds derived from alkanes containing one or more halogens. They are used as flame retardants‚ refrigerants‚ propellants‚ solvents‚ and pharmaceuticals. As a group‚ students convert three alcohols to alkyl halides under acidic conditions and record the 13C NMR spectrum in each
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particular HC derivative in chemical reactions. This means that the specific properties of the HC derivative are due to its functional group. Each functional group is attached to an alkyl radical (R). An alkyl radical is one H atom less than the given alkane. The alkyl radical (R) uses the general formula CnH2n+1 Table of Common Functional Groups ALCOHOLS Organic compounds that contain one or more hydroxyl groups . General formula for a class of organic compounds: Consists of the functional
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