Amari is a 15 year-old girl who had a peaceful life with her villagers and her love‚ Besa; until pale strangers came in her village. They welcomed those pale strangers; stand on her village’s tradition‚ they always celebrate a party for the visitors. But the visitors don’t come for that‚ they come to take away the strongest‚ healthiest people in the village to sale them for money and murder the rest because they are the slave traders. Amari saw her love ones died but couldn’t do anything‚ she felt
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of the three metal cylinders and the copper wire‚ the mass of the metal cylinders and calculate the densities of the cylinders and comparison with the acceptable values. MATERIALS 1. Triple- beam balance 2. Micrometer 3. A ruler (inches and centimeters) 4. A roll of copper wire 5. Wire Cutter 6. Vernier Caliper 7. Electronic balance (to measure mass of copper wire) 8. Graduated Cylinder 9. Three cylindrical metals (brass‚ aluminum‚ copper‚ zinc‚ etc) 10. Irregular object (lead
Free Measurement Volume Orders of magnitude
Mass of crucible Mass with cuSO4 Mass after heating Difference in mass 29.50 34.50 32.66 1.84 30.40 35.40 33.56 1.84 26.37 31.37 29.54 1.83 29.50 34.50 32.66 1.84 Moles of water = mass/mr = 1.84/18 =0.102 CuSo4 moles = mass/mr = (5 - 1.84)
Free Causality Experiment Salem, Massachusetts
Resistivity of Copper Wire of Different Lengths In this report I will be writing about the experiment I will conduct on copper wire of different lengths. The dependent variable I will be measuring is the resistance of the Copper wire. To do this experiment‚ one needs to obtain measurements with a high degree of accuracy‚ taking care of the equipment they use and measuring each value to a certain degree of accuracy for all results. The problem with measuring the resistivity of Copper wire is due to
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molecules that are in the hydrate. Copper(II) sulfate pentahydrate‚ or CuSO4 * 5H2O‚ is a ratio of one copper sulfate to five (penta) molecules of water. Copper sulfate pentahydrate is a blue hydrate while anhydrous copper sulfate (CuSO4) is white. To get anhydrous copper sulfate‚ copper sulfate pentahydrate must go through an endothermic reaction and have all of its water molecules evaporated. It then becomes the white‚ flaky‚ and chalky material anhydrous copper sulfate. Adding
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Chem 201 Lab October 21‚ 2011 Lab #6: Preparation of 2-chloro-2-methylbutane – an Sn 1 Reaction Purpose The purpose of this experiment was to prepare an alkyl halide‚ 2-chloro-2-methylbutane by reacting 2-methyl -2-butanol (t-amyl alcohol) with hydrochloric acid. Alkyl halides are of wide interest because they are widespread and have diverse beneficial and detrimental impacts .The overall reaction is given below: Procedure 1 ml of 2-methyl-2-butanol was measured using 1 ml syringe and
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depending on the number of alkyl substituents directly attached to the carbon attached to the halogen atom. The purpose of this lab was to properly prepare t-butyl chloride from t-butyl-alcohol in a concentrated hydrochloric acid. The reaction occurs through a nucleophilic substitution‚ which is when a nucleophile replaces the leaving group in the substrate. In this lab‚ the hydroxyl group of t-butyl alcohol is replaced by a chlorine atom. The reaction proceeds through an SN1 mechanism (Weldegirma
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(dialysis tubing). The experiment will show how molecules in solution move from areas of higher concentration to areas of lower concentration in the attempt to reach homeostasis in different circumstances. Introduction: The main purpose of this lab was to observe diffusion and osmosis. This is demonstrated using dialysis tubing and a combination of monosaccharaides‚ disaccharides‚ water (H20)‚ and sodium chlorine
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Chemistry Period 4 13 May 2012 Redox Reactions Lab Report We wished to investigate the oxidation number of a metal that would form aqueous ions when reacted with an aqueous nitrate salt. For this purpose‚ we chose to investigate the reaction of solid copper metal‚ in the form of a wire‚ with aqueous silver nitrate. Before we began the lab‚ we hypothesized that when silver nitrate‚ AgNO3‚ reacts with copper‚ Cu‚ the oxidation number of silver (Ag) ions that form will be +1. The unbalanced chemical
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TEXT BOOK OF BIOCHEMISTRY For 2nd year Medical Laboratory Technician Course (INTERMEDIATE VOCATIONAL) Author : S. Srinivasa Rao‚ B.Pharmacy‚ Jr. Lecturer in M.L.T.‚ Alluri Sri Rama Raju Govt. Junior College‚ Shanthi Nagar‚ Khammam. Editor : S. Kamalakar Rao‚ M. Pharmacy Senior Lecturer in Pharmacy‚ Department of Biotechnology‚ Govt. institute for post diploma courses in engineering and technology‚ Ramanthapur‚Hyderabad. INDEX Chapter I. Page No. Instrumental methods of Biochemical
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