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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“No one ever said that you could work hard—harder even than you ever thought possible—and still find yourself sinking even deeper into poverty and debt.” This is a quote by Barbara Ehrenreich who wrote “Nickel and Dimed‚” she is a journalist with a PHD in biology and writes about her own story as she chooses to change her entire lifestyle‚ face the hardships of being a part of the working poor class just to see if she can survive. Throughout the book she illustrated the different jobs she endured
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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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Angie Navarro Castillo Composition I Karla Whitehurst Another Day‚ Another Nickel As I’m driving on Interstate 30 going to work at the restaurant Country Fare‚ I stare at the beautiful mixture of colors displayed in the sky. Pink‚ orange‚ yellow and blue mixed all together in a breathtaking sunset in Arkansas. I get off exit 44. The time is getting closer and I pull over on the parking lot and I see the big sign that says TA. The time has arrived and now I have to work. It may not be the most
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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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Spectrophotometric Analysis of Cobalt and Nickel Purpose Understand the function of the Spectronic 20 Spectrophotometer‚ the Perkin-Elmer recording UV-visible spectrophotometer and reveal the concentrations of nickel and cobalt in an unknown solution. Procedure In the Lab: Part B: Complex Formation Pipette 20mL aliquots into a 150mL beaker. Do the same with cobalt nitrate and nickel nitrate. Add between 0.70g and 0.90g of EDTA to each of the cobalt nitrate and nickel nitrate. Add 1.5g of EDTA to the
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Ehrenreich’s book explains and describes the condition of the working poor in the United States. To write this book the author who is a well-known journalist at the New York Times decides to experience being a low-wage worker for a few months. She gives up her middle class life to become and live as a working poor. This was not to be a social experiment that was to recreate a poverty social scenario‚ but it was ‚ in fact‚ to see if she could maintain a lifestyle working low wage paying
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Emily Fontenot AP English III Summer Reading I. Journal: After playing the game Spent‚ I learned that low-wage workers have to sacrifice many things in life and make difficult decisions. For example‚ if two bills are due at the same time‚ they may have to choose which one to pay. Also‚ they are not able to provide their children with many things most kids take for granted. Children of low-income families may have to miss out on birthday parties‚ field trips‚ and even meals because their
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react under reflux to form a transition metal ion of Nickel(II)‚ that further more react with nickel acetate to form red crystals through condensation‚ the colour being constituded by the congugated bonds. These series of reactions synthesize the Schiff Base ligand and Nickel(II) complex of the Schiff base ligand. 0.36g of the Schiff base ligand is yielded and 0.1g of the nickel complex is yielded from the 0.36g Schiff base ligand and 0.5g nickel acetate. Introduction We perform two separate reactions
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Quantitative Analysis Finding the Percentage Composition of Nickel in an Unknown Compound Introduction: This section of lab was about using analytical chemistry and learning how to identify the amount of nickel in an unknown substance. The purpose was to use gravimetric analysis to quantitatively separate and weigh insoluble reaction products as well as utilize the mole method to compute the amount and percentage of nickel in an unknown nickel sample. The chemical reaction that took place involved the
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