tested for by a possible employer include Cocaine (crack)‚ Amphetamines (crystal)‚ Opiates (codeine‚ morphine‚ heroin)‚ PCP (phencyclidine)‚ and Marijuana. Gas chromatography/mass spectrometry is used to test hair and urine samples of possible drug abusers or job applicants‚ and it is the best method for the testing of drug use. Gas chromatography and mass spectrometry are two different methods for identifying chemical substances‚ and the two instruments have be coupled together to perform a highly complementary
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John B. Watson is considered the founder of behaviorism. He suggested that psychology should be objective and focus on human behavior. Watson ’s views dominated the field of psychology during the first half of the twentieth century. His theories and behavioral techniques that many psychologists have built on are still used today. This so-called father of behaviorism was born in 1878‚ in South Carolina into a poor family. Although left fatherless at the young age of thirteen‚ Watson who had
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Up to the beginning of the twentieth century the primary method of collecting data was through self- observation and introspection. Most of this was done in a lab or on an analysts couch. Then along came John B. Watson‚ who led a new generation of psychologists to a new way of thinking. This new way of thinking was behaviorism. For Watson‚ psychology was the study of observable‚ measurable behavior and nothing more. He insisted that you can not see or even define what consciousness is any more than
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NaOH) in order to initiate the cloudy appearance in solution. Vacuum filtration of the NaOH extract (organic acid) produced a shiny white crystalline product collected in the filter paper. Likewise‚ vacuum filtration of the HCl extract (organic base) produced a dull white crystalline product collected in the filter paper‚ which was comparable to powdered chalk. After the ether evaporated‚ the neutral extract remained in the bottom of the beaker and was a mixture of white and slightly tinted green and
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SEPARATION OF MIXTURE OBJECTIVE: To separate the components of a mixture based upon physical characteristics of each component within the mixture. Secondly‚ to determine the mass of each component by using the knowledge of separation techniques. SAFETY REQUIREMENTS: Do Not Pipette By Mouth Read the Chemical Safety Information Dress Appropriately Identify the Safety Equipment Don’t Taste or Sniff Chemicals Don’t Casually Dispose of Chemicals Down the Drain MATERIALS:
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OBJECTIVE The purpose of this experiment is to analyze mixtures of compounds prior to‚ during and after a separation scheme. This experiment also allows monitoring reactions of organic molecules‚ and determines the identity of a mixture of compounds. STRUCTURES AND PHYSICAL PROPERTIES OF REACTANTS [1] SOLVENTS | a. Hexane1Molecular Molarity: 86.18 g/molBoiling Point: 69 ºCMelting Point: -95ºCDensity: 0.659 g/mL at 25ºCWater Solubility: Insoluble in waterColor/Texture: Colorless/LiquidHazardous
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Robert Gardner Chandler English IV 9 January 2013 Total Separation of Church and State “Congress shall make no law respecting an establishment of religion‚ or prohibiting the free exercise thereof…” The first Amendment of the Bill of Rights within the Constitution and an amendment that comes with support‚ rejection‚ and controversy. The amendment was made because the forefathers didn’t want a bloodbath that had plagued most of the world. Since 1618‚ at least 23 million people have been
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The Separation of Mixtures This lab demonstrates the difficult task of separating mixtures using different types of methods. This study is performed because it helps you understand the concept of separation and certain characteristics of elements. Previous knowledge in which already exists in this lab would be the process of filtration‚ distillation‚ magnetism‚ and evaporation. The specific hypotheses of this experiment was that the iron would separate through magnetism‚ the salt would separate
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Separation of powers is a concept outlined within the first three articles of the United States Constitution. In primary school‚ separation of powers is taught as a simple concept concerning the three branches of government. It appeared as though each branch had an equal set of powers and that no abilities overlapped in the branches. However‚ after further research‚ it is blatantly apparent that one branch’s power supersedes the others. The Legislative branch’s powers stem into areas that overlap
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Gas chromatography is the common method used for the biogasoline analysis. Biogasoline catalytic cracking process requires detailed qualitative and quantitative analysis of the hydrocarbon composition of its oil and fraction. In this analysis‚ their fractional composition‚ saturated vapor pressure‚ density and antiknock rating will be investigated. By knowing the qualitative and quantitative composition of the gasolines‚ the content of n-paraffin‚ isoparaffin‚ aromatic‚ naphthene‚ and olefin (PIANO)
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