Lab 2 Sara Rodriguez Period 2 Purpose: What is the more accurate way to measure volume‚ by using displacement or by using a ruler? Hypothesis: If the method of displacement is used ‚ then the results will be more accurate than measuring the volume using a ruler. Materials: -250 mL graduated cylinder -Triple beam balance -A weigh boat -Ruler -Samples Procedure: 1. Gather materials such as ‚ samples‚ weigh boat‚ triple beam balance ‚ graduated cylinder‚ ruler and water. 2. Take the materials
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Experiment ENTHALPY AND ENTROPY OF ZINC WITH COPPER SULFATE The CCLI Initiative Computers in Chemistry Laboratory Instruction LEARNING OBJECTIVES The learning objectives of this experiment are to. . . ! ! determine changes in enthalpy and entropy of the reaction of zinc with copper sulfate using two methods: electrochemistry and calorimetry. compare the enthalpy values obtained by the two methods. BACKGROUND Thermodynamics is concerned with energy changes that occur in chemical and physical process
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more revenue than the other because they want to always maximize their revenue as a hotel. There are tools in place to aid in making these tough decisions; a spreadsheet is created with a displacement analysis to ease in this process. Displacement Analysis Spreadsheet Purpose of the Spreadsheet The displacement analysis spreadsheet helps managers see if the hotel’s revenue is being maximized. With this spreadsheet managers can compare the revenue expected by a certain group. By doing this they will
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This purpose of the lab was to observe and compare the reactivity of the elements within groups and the reactivity of the groups themselves. The elements of each group were reacted with fire‚ acid (HCl or HNO3)‚ or in deionized water. According to the observations‚ the most reactive group was the alkali metals. Since the alkali metals are in group 1‚ they only have one valence electron and can easily lose this electron. As you move towards the right of the periodic table‚ the number of electrons
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• Redox‚ Group 2 and Group 7 Unit 1 Exam – January 2013 – 1 hour – 90 UMS – 30% of total Unit 2 – Spring Term 2013 • Basic Concepts in Organic Chemistry • Alkanes and Alkenes • Haloalkanes and Alcohols • Enthalpy Changes • Rates and Equilibrium • Modern Analytical Techniques • Chemistry of the Air • Sustainability Unit 2 Exam – May 2013 – 1 hr 45 mins – 150 UMS – 50% of total Unit 3 – Autumn Term 2012 and Spring Term 2013
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Lab Report on Oxidation & Reduction I. Metal-Metal Ion Displacement II. Halogen Displacement Reactions INTRODUCTION A series of experiments had been conducted to determine the order of displacement strengths of the metals and halogen chosen for the experiments. A displacement reaction is a reaction in which one element(metal or non-metal) displaces another element(metal or non-metal) from its salt solution. In the displacement reaction of metals‚ the more electropositive metal will
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Displacement is the state in which you are not where you belong. The time‚ the place or with whom you are can greatly affect how you feel‚ given that humans seem to always lean towards their comfort zone. In The Awakening‚ a novella written by Kate Chopin‚ the protagonist‚ Edna Pontellier‚ is a displaced person in the Creole world. She feels uncomfortable and out-of-place amongst the Creole women on Grand Isle because of their different cultures. Edna also seems to be ahead of her time‚ as she submerges
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Tribal Displacement and Human Rights Violation Introduction After the Independence‚ India was engaged in a nation-building process. Nation building was equated with modernization and fast development of infrastructure and economic conditions of the people and the country as a whole. The question is that the development activities should give space for the protection of the rights of the Tribal people and the prosperity or greater good for the larger numbers? The pursuit of development has in present
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Relative Reactivity of Anilines Abstract: Various Anilines were tested with Br2/HBr solution‚ the products were crystallized and melting points attained to verify relative reactivity. My assignment‚ 2‚4-Dibromoanisol‚ was prepared in a yield of 52% with a melting point of 55-58 C . Reaction: Mechanism: Procedure: Anisole (0.35mL‚ 0.0378mol) was obtained and placed in a pre-weighed 25 mL round bottom flask‚ along with 2.5 mL of glacial acetic acid and a magnetic stir bar. Then the
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ACTIVITY SERIES The activity series of metals is an list of metals ranked in order of decreasing reactivity to displace hydrogen gas from water and acid solutions. It can also be used to predict which metals will displace other metals in aqueous solutions. In introductory chemistry‚ the reactivity series or activity series is an empirical series of metals‚ in order of "reactivity" from highest to lowest. It is used to summarize information about the reactions of metals with acids and water‚ single
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