Simple Distillation of Ethyl Acetate contaminated with Methyl Violet Operational OrganicChemistry A Problem Solving Approach to the Laboratory Course‚ 4th edition‚ by John Lehman‚ Experiment 4‚ OP-30 pg 710-719 I. Introduction The students will use the distillation method to extract pure Ethyl acetate by using the distillation equipment. The distillation is the process of vaporizing a liquid mixture in one vessel and condensing the vapors into the receiver. II. Experimental procedures. 1
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required the successful identification of two unknown substances through experimental testing on a selective collection of materials and equipment. For the first substance (which will be either tin or aluminium)‚ two tests shall be done to ensure a decisive and educated decision onto what the substance is. The first step utilizes the dramatic difference in density between the two substances by measuring the volume and mass of the unknown substance. By calculating the volume (through displacement of
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definitions of Substance from both his ’Categories’ and ’Metaphysics‚ Book VIII’ To begin‚ a brief definition of both accounts should be described‚ but later‚ I will go over in greater specifics about his definition in ’Categories’ for a basic elucidation‚ providing examples throughout. Then‚ I will compare and contrast the two accounts. First‚ for Aristotle’s definitions of substance‚ there are two. One of the said definitions is written in ’Categories’. It states that a substance is neither
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CHAPTER 4 Substance-Related Disorders ● BACKGROUND ASSESSMENT DATA The substance-related disorders are composed of two groups: the substance-use disorders (dependence and abuse) and the substanceinduced disorders (intoxication and withdrawal). Other substanceinduced disorders (delirium‚ dementia‚ amnesia‚ psychosis‚ mood disorder‚ anxiety disorder‚ sexual dysfunction‚ and sleep disorders) are included in the chapters with which they share symptomatology (e.g.‚ substance-induced mood disorders
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Substance Abuse Among the Elderly Substance abuse is widely recognized as one of the most serious social‚ ethical‚ and legal problems of the modern day‚ but few people realize how serious this issue affects the elderly population of the United States. Substance abuse is generally considered to be a problem of early adulthood‚ however‚ the truth is that substance abuse impacts older Americans on a large scale‚ and must be addressed through a multifaceted approach in which nurses play a key role. This
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Substance Abuse: Among Society’s Youth Tyra Klein English 20-1 Mrs. Rainier October.8th 2013 Klein 1Substance Abuse: Among Society’s Youth Substance Abuse is all around us in today’s society. 60% of all illicit drug users are between the ages fifteen and twenty-four (Stats Canada). This means teens have the highest risk to fall into a path of drug use. Three common factors can cause drug abuse among teens; Social Factors‚ ’the high mentality’‚ and the availability of a drug to teens. These
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Drug-Free Workplace Evaluation “At-risk‚ though circumscribed‚ segments of the U.S. workforce were identified with prevalence rates up to 55.8% for any use of illicit drugs and up to 28.0% for illicit drug use in the workplace” (Frone‚ 2006‚ p. 856). Substance abuse affects many in the workplace‚ and the individual’s drug or alcohol mistreatment has a harmful impact in various division of the workplace. Workers who dependent on drugs or alcohol can demonstrate low enthusiasm and be deficient in awareness
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Addictions Substance and Behavior What is addiction? There are many definitions and classifications‚ but what it comes down to is: “the person loses control over their use of the substance or behavior‚ and importantly‚ they are aware of that loss of control.” Addiction is a euphoric feeling one may get from a behavior or substance. Addiction is a mental concern which researchers have related with dopamine levels in the brain. An experiment taken place in 2009 with Dr. Nora Volkow at the National
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Descartes famously proposed the conception of the mind and body as two distinct substances. Substance dualism is one of his famously philosophical stances. According to this philosophical position‚ the mind and body can exist as two separate substances that can exist independently. Descartes commences by noting that the basis of his opinions have been his senses and we cannot be sure that our minds are not deceiving us. It is as such because we cannot be sure that our exciting thoughts of the world
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controversial thinking is exactly what Descartes was known for. His "out of the box" thinking not only raised eyebrows‚ but it also brought a lot to the table. One of his most discussed ideas was that of substance dualism. In this theory‚ Descartes describes the mind an body as two separate substances. But to completely understand exactly what Descartes means by this‚ one of his other‚ more renowned theories must be explained first. One of Descartes ’ first ideas was the material is in constant motion
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