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    DESCRIPTIVE TITLE The Effect of Different Amounts of Sodium Chloride on the displacement of oxygen. INTRODUCTION The dependability of the rate of an enzyme-mediated reaction is based on two factors: the substrate concentration and the concentration and action of the enzyme that catalyzes the reaction (Vander, et. al., 2001). Enzymes are catalysts that produce chemical reactions in cells. Enzymes which are large proteins perform a reaction which acts upon a substance known as a substrate. When

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    Poverty in Nigeria

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    country is well known for its lack of leadership the money made through oil trade is kept by rich benefactors, and the poor are left with nothing. Another major problem that is increasing poverty is Nigeria's population. The amount of people being born is far exceeding the amount of jobs available for them. Due to these two factors the level of poor people living in Nigeria today is staggering. The gap between the rich and the poor is so large that there is almost no inclination of a middle class at

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    Electroplating Experiment

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    Electroplating Experiment Aim To find the amount copper gains or loses on the electrodes using different amounts of current each time during electrolysis. How the changing of current affects the electroplating of copper. Introduction Electroplating is generally carried out in order to improve the appearance or corrosion resistance of the surface of a metal by electrodepositing a thin layer of metal ion on it. The metal substrate to be coated is made by the cathode in an electrolytic

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    The Atmosphere and Oceans The atmosphere is a cocktail of gases . The exact amounts of each gas vary as the amount of water vapour is variable. Name of Gas Amount in air % Nitrogen Oxygen Argon 78 21 1 The amount of carbon dioxide in the atmosphere is tiny (0.01%). The amounts of carbon dioxide and oxygen gas are balanced and stay the same. Photosynthesis in plants converts carbon dioxide into oxygen. Breathing and burning convert oxygen into carbon dioxide

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    Sodium Thiosulphate by putting different amounts of Sodium Thiosulphate and water bye keeping the same total volume of 50cm³. We will then add 5cm³ of hydrochloric acid. We will time how long it takes for the cross to completely disappear from site after the reaction has completely finished. Constants Variables Temperature Concentration of Sodium Thiosulphate Total amount of Sodium Thiosulphate + Water Size of conical flask Amount of hydrochloric acid Hydrochloric acid

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    rate of decomposition of H2O2 with different amounts of catalyst (MnO2). Hypothesis: When H2O2 and a catalyst are mixed together, the catalyst would break down H2O2 into water and oxygen. This will result in bubbles being produced. With the data of these oxygen bubbles, the rate at which H2O2 decomposed could be found out. 2H2O2 (l) à2H2O + O2 The controlwould be to maintain the same temperature (room temperature) and to use the same amount of hydrogen peroxide (10ml) in all the tubes

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    calculate how much zinc oxide is produced from 3g of calamine 0.648 is tripled and so on when increasing the mass of calamine. On the next page there is a table of the theoretical conversions for how much zinc oxide is produced from using certain amounts of calamine (1g-9g) Mass Of ZnCO₃ (g) Mass of ZnO Produced (g) 1 0.648 2 1.296 3 1.944 4 2.592 5 3.24 6 3.888 7 4.536 8 5.184 9 5.832 Here is a graph of the results predicted from the

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    Determination of the Valency of Magnesium Objectives: In this experiment, we can know about the quantitative relations between amounts of reactants and products of a reaction so that the stoichiometry reaction can be determined by a known mass of magnesium and a measured collection of hydrogen gas. Introduction: In chemistry, stoichiometry is the study of the combination of elements in chemical reactions. Stoichiometry refers to the relative number of atoms of various elements found

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    reaction will be slower and weaker. This will happen as there are less particles of hydrochloric acid reacting with the calcium carbonate, the fewer amounts of particles the less amount collisions with the calcium carbonate. Therefore when the hydrochloric acid is strengthened by doubling the amount of hydrochloric acid and adding it with the same amount of calcium carbonate the reaction will be stronger and quicker. This will occur as there are more particles in the solution reacting with the calcium

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    consumer remain unchanged. (b) He has a fixed income. (c) The prices of all goods are given and known to a consumer. (d) He is one of the many buyers in the sense that he is powerless to alter the market price. (e) He can spend his income in small amounts. (f) He acts rationally in the sense that he want maximum satisfaction (g) Utility is measured cardinally. This means that utility, or use of a good, can be expressed in terms of "units" or "utils". This utility is not only comparable but also quantifiable

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