3/22/2012 ARYL HALIDES 2. displacement reactions of diazonium salts ARYL HALIDES General formula: Ar–X where X = F‚ Cl‚ Br or I Examples Structure: C-X bonds are shorter and stronger Bond C-Cl C-Br Ar-X 1.69 A° 1.86 A° R-X 1.77 1.91 Dipole moments are unusually small. Bond C-Cl Preparation: 1. electrophilic aromatic substitution – useful only if one product is obtained C-Br Ar-X 1.7 D 1.7 D R-X 2.10 D 2.15 D Dipole moments may cancel out depending on the geometry of the
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ILLINOIS STATE POLICE Division of Forensic Services Education Forensic Science Laboratory ISP CENTRAL HEADQUARTERS * 400 N Broadway Ave URBANA‚ Illinois 61820-0 (217) 384-3888 (Voice) * 1-(800) 255-3323 (TDD) Pat Quinn Hiram Grau Governor Director April 18‚ 2014 LABORATORY REPORT DET. Stabler CHAMPAIGN POLICE DEPARTMENT 82 E UNIVERSITY AVENUE CHAMPAIGN IL 61820
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Sarah Coughlin Mr. Murphy Crim Honors 16 May 2014 Autopsy There are many different types of evidence that can be found at a crime scene‚ but few provide as much evidence as the victim’s body. An autopsy is a medical examination of a body that is performed to determine the cause of death. Forensic autopsies are conducted by forensic pathologists when a death appears to be suspicious or linked to criminal activity. The autopsy should reveal three main things: the cause of death‚ mechanism of
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Auguste Comte (1798–1857) is the founder of positivism‚ a philosophical and political movement which enjoyed a very wide diffusion in the second half of the nineteenth century. It sank into an almost complete oblivion during the twentieth‚ when it was eclipsed by neopositivism. However‚ Comte’s decision to develop successively a philosophy of mathematics‚ a philosophy of physics‚ a philosophy of chemistry and a philosophy of biology‚ makes him the first philosopher of science in the modern sense
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"The whole goddamn business of what you ’re calling intimacy bugs the hell out of me. I never know what you women mean when you talk about it. Karen complains that I don ’t talk to her‚ but it ’s not talk she wants‚ it ’s some other damn thing‚ only I don ’t know what the hell it is!" This quote from a man interviewed by Lillian Rubin is the perfect example of the differences in communication between men and women. These differences in communication methods of women and men are born of a complex
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Mendel’s approach to answering scientific questions was highly focused. He chose just a handful of traits to study‚ seven to be exact‚ and by doing so was able to more easily keep an accurate mathematical record of each of the traits and how they carried to subsequent generations. The approach that he took‚ looking at a lesser quantity of traits‚ gave him an advantage because he was able to realize a higher quality of information from his research. The simplicity of it gave him more control over
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Cystoclysis Description: Bladder irrigation is the process of flushing the bladder with normal saline to prevent or treat clot formation. Bladder irrigation may also be used to instill medications such as antibiotics for treating bladder infections. This is done over a period of time‚ and runs continuously. A special catheter is used for the above procedure. Purpose: To prevent blood clot formation‚ allow free flow of urine and maintain IDC patency‚ by continuously irrigating the bladder
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Gender imbalance may arise as a consequence of various factors ranging from natural factors and war casualties to intentional gender control and deliberate gendercide. the human sex ratio‚ both at birth and as a population matures‚ can vary significantly according to a large number of factors‚ such as paternal age‚ maternal age‚ plural birth‚ birth order‚ gestation weeks‚ race‚ parent’s health history‚ parent’s psychological stress cold weather is an environmental stressor‚ and women subjected
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2.3.8 GUEST FLOOR CORRIDORS Good practice indicates that a corridor should‚ if at all possible‚ not be over 100 ft. in length. It sometimes occurs that‚ because of the size of the hotel or its configuration‚ corridors may be longer. There are a number of hotels where corridors stretch out for over 200 ft. The architect would be well advised to introduce an interruption of some sort in his corridor planning to keep the guest from feeling as if his approach to his room were an endless path. The interruption
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believed that working together in partnership is the best way they can make a positive difference. There are numbers of process and people involved in their Supply Chain: Buyers The buying office is based in Stockholm‚ Sweden. Here‚ designers‚ pattern makers and buyers‚ together with merchandisers in their production offices‚ create‚ plan and purchase their collections. Merchandisers Based in one of their 15 production offices in Asia and Europe‚ merchandisers are the link between H&M’s buying
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