Chem 21 Fall 2009 Experiment 9 — Recrystallization _____________________________________________________________________________ Pre-lab preparation. (1) Read the supplemental material from Zubrick‚ The Organic Chem Lab Survival Manual. (2) Draw the structure of acetanilide and report relevant physical data. Be sure to cite the source of the data. You should be able to figure out what’s relevant by reading the procedure. (3) Find and report the boiling points of the solvents you will be using
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atrocities against other women? The usual answer is to portray women guards as more like surrogate men (Sarah Helm). Dr. Herta Oberheuser was one of the most cruel‚ gruesome female doctors in Ravensbrück. Dr. Oberheuser ran many different types of experiments‚ but she had two certain ones she focused mainly on. She would test different types of injections on children‚ such as evipen and oil. After waiting until they either died‚ or still may be fully alive and aware she would continue working on them
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Germany was desperate for a new leader to help them escape poverty. Adolf Hitler saw his chance and became the voice of the people. Hitler could be described as a well public speaker‚ and won many people’s votes. Already chancellor‚ Hitler won the election and became the president of Germany in 1934. Shortly after Hitler became ruler‚ his main objective was to arm his forces and seize land from other countries. On September 1‚ 1939‚ 1.25 million German soldiers invaded the grassland country
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NAZI MEDICAL EXPERIMENTS Nazi Medical Experiments Jean Paul Marion-Landais Jackson Memorial School of Radiology Abstract The Nazi Dr.’s performed a vast array of experiments on most if not all of the prisoners they held in their concentration camps. Such experiments caused a great deal of dilemmas across all the nations in the world. Headed by Dr. Josef Mengele one of the most controversial individual that has ever worn the label of Medical Doctor‚ the experiments dealt with how
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Background Information The goal of this experiment is to measure the percentage of oxygen in air samples and this project will show an interesting way of doing that. The method depends on atmospheric pressure and a chemical reaction that removes oxygen from the air. I will find out what kind of chemical reaction can
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The Tuskegee Syphilis Experiment The Tuskegee Syphilis Experiment took place in Macon County between the years 1932 and 1972. The U.S. Public Health Services teamed up with Tuskegee University to study how syphilis would advance when left untreated. A total of 600 African American were joined in the study‚ out of these men 399 were diseased before the study began and 201 did not have the ailment. All the participants were uninformed of what they were actually being treated for. According to the
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Story Dr. Heidegger invites to his study four elderly friends to engage in an experiment. Three are men: Mr. Medbourne‚ Colonel Killigrew‚ and Mr. Gascoigne; the fourth is a woman‚ the Widow Clara Wycherly. The study is a dusty‚ old-fashioned room replete with a skeleton in the closet‚ a bust of Hippocrates‚ books and bookcases‚ and a portrait of Sylvia Ward‚ who died fifty-five years before the night of the experiment on the eve of marriage to the doctor after swallowing one of his prescriptions
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Experiment 3 Vectors J. Rodriguez‚ J. Panis‚ Y.Magsipoc‚ A. Castillo‚ A. Ordoñez‚ M. Tombado‚ J. Semilla‚ K. Almeniana‚ and P. Bugacia Industrial Engineering Department‚ College of Engineering Adamson University‚ Ermita‚ Manila In this experiment‚ the students will determine the resultant of different forces using different methods: graphical method; and getting the equilibrant of forces using component method the force table. Each of the three methods has their own way of getting the resultant
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Organic Chemistry: CHP 225 Thomas Hsieh Experiment 2: Boiling Points o Date experiment was performed: September 16‚ 2011 o Objective: To determine the boiling point of organic compounds such as tert-butyl alcohol‚ sec-butyl alcohol‚ n-butyl alcohol‚ and an unknown. o Principle: Boiling point is the temperature at which gas and liquid phases coexist in equilibrium. At this temperature‚ the vaporization rate and the condensation rate are equal. The liquid and vapor reach a state of dynamic
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Copper sulphate experiment Introduction There are a number of different methods of making salts‚ such as the reaction of a metal with an acid. Copper metal‚ however‚ does not react with sulphuric acid and so another method must be used. In this experiment a basic copper compound (copper(II) oxide) will be reacted with sulphuric acid giving copper(II) sulphate as one of the products. Method 1. Wear goggles and keep your face away from the beaker during the reaction 2. Place 20 cmm3 sulphuric
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