DETERMINATION OF ZINC AND NICKEL CONCENTRATION BY (1) ION-EXCHANGE CHROMATOGRAPHY FOLLOWED BY CHELOMETRIC TITRATION‚ AND BY (2) ATOMIC ABSORPTION SPECTROSCOPY OF THE MIXTURE Experiment 4 Dates of Experiment: 10/14/08 through 10/30/08 Date of Report: 11/7/08 Chem 2262L � I. Introduction In this experiment‚ the zinc and nickel contents of unknowns were tested using two methods. In the first method‚ nickel and zinc were separated through ion-exchange chromatography and analyzed through chelometric
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Reader Response: “The Ways of Meeting Oppressions” Summary: Martin Luther King Jr.’s “The Ways of Meeting Oppressions”‚ clearly states his beliefs on how African American’s should rise against oppression in the South. Mr. King believed that people could become so overcome with oppression that they give up fighting their oppressor. He did not believe that giving in to oppression was the answer to solving civil rights issues in the south. King also believed physical violence was not the answer either
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Dropbox Quick Start What is Dropbox? Dropbox is a free service that lets you bring all your photos‚ docs‚ and videos anywhere. Any file you save to your Dropbox will also automatically save to all your computers‚ phones‚ and even the Dropbox website. This means that you can start working on your computer at school or the office‚ and finish on your home computer. Never email yourself a file again! The Dropbox Folder After you install Dropbox on your computer‚ a Dropbox folder is created. If you’re
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Low-Wage Workers " There are no secret economies that nourish the poor; on the contrary‚ there are a host of special cost"‚ meaning that there isn’t any help for the poor but yet they have to pay for everything they need and have. Although it may be true in some cases but I disagree with the statement. The reason why I disagree is because it all depends on the person’s situation. As for Barbara Ehrenreich she bases it on her co-workers life on how some struggle just get by without support. Unfortunately
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INTRODUCTION 1.1. Nickel Nickel is a chemical element with atomic number 28. It is denoted by the symbol ‘Ni’ and is one of the main constituent of meteorites. It was discovered in 1751‚ by Axel Fredrik in Sweden. It belongs to the transition metal group and is known for its hardness and ductility. Significant chemical reactivity is exhibited by pure Nickel. Nickel in its pure or low-alloy form is used in several fields as it is highly resistant to various reducing chemicals. Nickel when annealed exhibits
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Duyen Dang It was the most frightening experience of my life when my family and I spent our holiday in Las Vegas some years ago. To relax and entertain after a long hard-working time‚ my parents decided that we would spend our Christmas holidays in Las Vegas. It was an exciting trip. We were all having a wonderful time together during the trip‚ except for the last day. The story started when we decided to watch the pirate show. It was such an interesting show that it attracted hundreds of
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Considering there are a number of factors that affect how students learn‚ it is imperative for teachers to implement strategies to promote independent learning. Students often become frustrated and disorganized and they feel like they are incapable of learning. Students should be encouraged to take responsibility for their own development. Teaching them skills such as social skills‚ coping skills‚ organizational skills‚ problem solving skills‚ thinking skills‚ to name a few‚ would help them lead
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Morgan State University University Calendar *All dates are subject to change WINTER 2014 MINIMESTER JANUARY 2014 1 Wednesday 2 2-3 6 Thursday Thursday-Friday Monday 20 Monday 22 23 24 27 Wednesday Thursday Friday Monday Residence Halls open for 2014 Minimester FAFSA Application opens 2014 MINIMESTER CLASSES BEGIN 2014 Minimester Late Registration/(Drop/Add) Last day to withdraw from minimester classes (with grade of “W”) MARTIN LUTHER KING‚ JR. HOLIDAY
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Scary about DARA‚ spend a night in the house alone 1. PERSON DARA was 19 years old. He lived with his uncle’s flat nearby in Phnom Penh. He was a student 1st year at a university in Phnom Penh‚ and he had a part time job at Restaurants. He was a gentleman with short hair‚ black eyes‚ and tall. He was so handsome‚ kind‚ honest‚ and is a smart guy. 2. PROBLEM One day he needed to stay alone at night because his uncle had some mission to do at province. And his uncle advised him to call some
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In this study‚ nickel-titanium surfaces are coated with phenolic thin films of tannic acid and pyrogallol with the purpose of studying their corrosion resistance in physiological environments. Three tests are performed: the open circuit potential test‚ potentiodynamic polarisation and potentiostatic electrochemical impedance spectroscopy. Polarisation measurements are scrutinized in order to gain knowledge concerning the kinetics of the cathodic and anodic reactions‚ while the open circuit and impedance
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