According to Petrucci et al.‚ titration is a reaction carried out by the carefully controlled addition of one solution to another. It has several types like acid-base titrations and redox titrations. This experiment focuses on the latter type‚ the redox titration. A redox titration is based on an oxidation-reduction reaction between analyte and titrant (Harris‚2009). It involves the transfer of electrons between the two solutions. This experiment aims to determine the amount of iron or iron content
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Tuskegee Syphilis experiment is the most infamous clinical study conducted in the United States between 1932 -1972. The study of natural progression of untreated syphilis in rural Africa American men‚ led to a forty year study which was controversial for reasons related to ethical standards; researchers knowingly failed to treat patients after the 1940s validation of penicillin. The patients with syphilis were never told they had it‚ were part of a case study‚ could leave the experiment at any given
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BIOL2220 Lab 3: Hill Reaction Introduction In 1937‚ Robert Hill discovered that isolated chloroplasts can generate oxygen when they are illuminated in the presence of a suitable electron acceptor‚ even in the absence of carbon dioxide. This finding was a landmark in the study of photosynthesis because it established that the source of the electrons used in the light reactions is water. It also confirmed that the released oxygen is derived from water instead of carbon dioxide. In chloroplasts
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thirds of them are women." More than 60 percent of all prison inmates are functionally illiterate. Two thirds of students who cannot read proficiently by the fourth grade will end up in jail or on welfare. These are all true statements. Illiteracy and crime are closely related. The Department of Justice states‚ "The link between academic failure and delinquency‚ violence‚ and crime is welded to reading failure." Over 70% of inmates in America’s prisons cannot read above a fourth grade level. By educating
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of 8 were ex felon that were unemployed. It is really hard for someone to get a job that has been arrested in the past because jobs can search your name and show that you have a rap sheet. When someone is arrested and have to serve several years in prison they can lose time and what technology has changed over the years (halscott). Losing rights as a felon is terrible‚ not only does it ruin how people see you due to the fact that you had been arrested of somethings that was bad enough to be a felony
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SUMMARY The aim is to observe distillation process of ethanol-water solution and to measure the alcohol content after process in this experiment. 500 ml of solution with an alcohol content of 32% (v/v) is used for this experiment. Temperature values are recorded for every 10 ml alcohol obtained in the flask. The process is repeated in our experiment and for the first process‚ the data collection process continues until the distillate reaches to 200 ml. The concentration of alcohol is measured for
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REACTIONS OF HYDROCARBONS Diane Cate Satsatin Biology Student‚ Biology Department College of Science‚ De La Salle University-Dasmarinas ABSTRACT Five substances which are Hexane‚ Eugenol‚ Unknown hydrocarbon 1‚ Unknown hydrocarbon 2‚ and Acetylene gas was used for the selective reactivity of hydrocarbons to functional group tests; Bayer’s test‚ Bromine test light‚ Bromine test dark‚ and Tollen’s test. In Bayer’s test‚ only Acetylene‚ Eugenol and Unknown hydrocarbon 2 reacted positively
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Experiment 3: Wittig Reaction Introduction This experiment performs a modified Wittig reaction using a phosphorus-containing Hornes-Emmons-Wittig reagent to generate an enolate anion of trimethyl phosphonoacetate instead of a phosphorus ylide. The methyl trans-4-methoxy cinnamate produced is then analyzed using melting point and 1H NMR spectroscopy. Theory The Wittig reaction prepares alkenes from carbonyl compounds by attacking a phosphorus ylide with a nucleophilic carbon atom stabilized by
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made by the U.S. Sentencing Commission to diminish prison overcrowding and give help to prisoners given unforgiving sentences in drug cases‚ the government Bureau of Prisons will concede early discharge to around 6‚000 prisoners starting in late October. Many of the prisoners were in half-way houses. They have served a normal of nine years and due to be released in a year and a half. As a feature of a push to give the government Bureau of Prisons time to get ready for a convergence of convicts entering
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every now and then‚ that luxury would be taken away. If you like to sit around and watch TV for hours‚ you can forget about that too. Logical Orientation: Alcatraz has a long history of transformation as to how it came to be known as the inescapable prison island. This reputation did not stop a handful of men to try and do the impossible and escape the island. BODY I. Main Point: Alcatraz has a long history A. Before Alcatraz became the tourist attraction it is today‚ it was speculated that the Native
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