This experiment will test the suggestion that the enthalpy change between a metal and a solution of a salt is related to the relative position of the two metals in the reactivity. Presumably the further apart in the series the bigger the enthalpy change will be. The experiment is as follows‚ 1) Zn(s) + CuSO4(aq) ZnSO4(aq) + Cu(s) 2) Zn(s) + Pb(NO3)2(aq) Zn(NO3)2 (aq) + Pb(s) Both of the solutions will be in 1mol.dm-3 Apparatus: Distilled Water Polystyrene Cup
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Thermochemistry: An Ice Calorimeter Determination of Reaction Enthalpy Shannon Wedepohl 9/17/13 Abstract: During this experiment‚ an ice calorimeter was used to measure the change in volume in milliliters of magnesium metal and 1.00 M of sulfuric acid. We found the experimental molar enthalpy of the reaction to be ∆H = -370 ± 1 kJ/mol at 0˚C. This compares with an expected value of -466.9 kJ/mol at 25 ˚C‚ a 20.75% difference. Introduction: Many chemical reactions truly only
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Research Paper Abstract A research paper abstract is often an integral part of a research paper writing assignments. Not all students will need to write abstracts; however‚ when a professor assigns a research paper abstract‚ students need to know how to write one effectively and succinctly. A research paper abstract is basically a recap of the content of a research paper. An abstract is usually one paragraph (depending on the size of the paper) that says what the paper is about in very clear terms
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Abstract Art & Expressionism in America Abstract art expressionism is mostly known as the experimental‚ free expression‚ nonrepresentational painting marked by spontaneous expressions. Abstract became and intuitive painting technique producing a non-formal work of art characterized by non-symmetrical lines. Abstract Expressionism is not only a term used to describe a form of art; it’s also a New York school of painting recognizable by free spirited created abstractions. Abstract Expressionism later
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INTRODUCTION Abstract Algebra is more rightly considered meta-mathematics than mathematics proper‚ because it can be used to describe the structures that exist within mathematics from a general standpoint. The basic notions of Groups‚ Rings‚ Fields‚ and Algebraic Extensions provide a framework from which to examine almost all of mathematics. These notions serve as unifying concepts that interlace such seemingly disparate subjects as geometry‚ analysis‚ number theory‚ topology and even applied
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How to write an abstract An abstract is a short summary of your completed research. If done well‚ it makes the reader want to learn more about your research. I .These are the basic components of an abstract in any discipline: 1) Motivation/problem statement: Why do we care about the problem? What practical‚ scientific‚ theoretical or artistic gap is your research filling? ( Some state the background information about the investigation briefly before the motivation) 2) Methods/procedure/approach
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If you take a look at the paintings‚ you will see that they are abstract. In fact‚ they are painted in a style that is sometimes referred to as "Abstract Expressionism". Many people have trouble understanding and appreciating this type of art. The purpose of this essay is to explain how‚ over time‚ art has evolved to become more and more abstract‚ and why this is important. My intention is to explain the goals of abstract art‚ and to help you learn how to enjoy it. To begin‚ I’d like to introduce
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Abstract Expressionism The term Abstract Expressionism was used for the first time in 1919 to describe the work of Kandinsky‚ but is now used to define some post world war two art. In the 1940’s in America‚ particularly New York artists were creating art in a new style one that shifted the art world’s focus. Though they were not formally associated‚ these artists all shared some common ideas. This group was referred to as "The New York School" or "Abstract Expressionists". This type of art
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Impact of Hydration on Physical and Mental Performance By Raeey Melaku. Introduction Our body has its own way of indicating when we need a certain aspect that is essential for us to live. For food‚ there is hunger. For urination‚ there’s the need to use the bathroom and in this case‚ for water‚ there is thirst. Water is by far the most essential nutrient in the world. We need water everyday. We can go up to three weeks without food and yet we can only survive three days without
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Introduction Our Contribution Generation of Program Invariants using Abstract Interpretation Framework 41st Annual International IEEE/IFIP conference‚ DSN- 2011‚ Hong Kong Anirban Roy Choudhury Homi Bhabha National Institute Mumbai‚ India 30 June‚ 2011 Anirban Roy Choudhury Generation of Program Invariants using Abstract Interpretation Introduction Our Contribution Abstract Interpretation Abstract Domains Motivation A faulty computer software can cause significant economic
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