The purpose of this experiment is to derive the universal gas constant for gases experimentally by collecting gases from the neutralization reaction and determining the volume and pressure of the gas and then the partial pressure of the gas formed. The single displacement reaction between magnesium metal and hydrochloric acid will be used to generate the hydrogen gas: Mg (s) + 2 HCl (aq) MgCl2 (aq) + H2 (g) Experimental Method In preparing the metal‚ a two
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INVESTIGATION #2 DETERMINATION OF THE WATER OF CRYSTALLISATION April 4‚ 2012 OBJECTIVE: Chemical compounds that contain discrete water molecules as part of their crystalline structure are called hydrates. Hydrates occur quite commonly among chemical substances‚ especially among ionic substances. More often than not‚ such compounds are either prepared in‚ or are recrystallized from‚ aqueous solutions. Hydrates exist for ionic compounds most commonly‚ but hydrates of polar and non polar covalent molecules
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Serina Pooja Sowman | Practical 7: Determination of Hardness in Water | | | | | 10/3/2012 | | Aim: To determine the different types of hardness and alkalinity found in the water by titration methods. This is used to calculate the concentrations of calcium and magnesium found in the water. Principles: The hardness of water is determined to provide a measure of the quality of water for household and industrial use. Hard water is not a health hazard. Drinking hard water
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Hydrogen Selenide is toxic. It is made up of selenium which is also toxic‚ and hydrogen which is nontoxic. This substance is also colorless like hydrogen‚ but not like selenium which is a deep red color. There are reports of mine workers being poisoned by hydrogen selenide and selenium. Increasing industrial applications of selenium and the fact that workers may be exposed to Hydrogen Selenide have led authors to make a further investigation of the toxicity of this substance. The purpose of this
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officers have three types of duties: specified duties‚ directed duties and implied duties: specified duties‚ direct duties and implied duties. Specified duties are related to jobs and positions. such as Army regulations‚ Department of the Army general orders‚ the Uniform Code of Military Justice‚ soldier’s manuals‚ Army Training and Evaluation Program Publications and MOS job descriptions specify the duties. Direct duties are not specified as part of a job position or MOS or other directive. A superior
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Michigan entrepreneur Justin Eric Sutton brings us into the era of clean hydrogen energy and solar energy‚ by producing a remarkable high speed MAGLEV railway which is being sold throughout the USA for deployment on Elevated Superhighway Rails‚ it speeds travelers between metro areas at up to 250+ MPH‚ in this remarkable vision of the not so distant future! Not only would it revolutionize energy AND transportation‚ it is both feasible and deployable TODAY. All that remains is funding and agreements
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Title: Experiment 17‚ Reaction kinetics – Determination of the activation energy of the reaction between oxalic acid and potassium permanganate. Objective: To determine the activation energy of the reaction between oxalic acid and potassium permanganate. Introduction: Chemical kinetics is the study of chemical reaction rates‚ how reaction rates are controlled and the pathway or mechanism by which a reaction proceeds from its reactants to its products. Reaction rates vary from the very fast‚ which
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Determination of blood type Introduction: A blood type is a classification of blood based on the present or absence of inherited antigens substances on the surface of RBCs‚ these antigens are made by proteins‚ carbohydrates‚ and glycolipid‚ Now there are total of 8 blood type known for the international society of blood transfers ( ISBT)‚ Also 600 antigens are known for ISBT‚ Antigens are a type of protein (Y shaped) found in blood and it has a great role in the immune system to recognize any
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Respect in Relationships Respect is treating ourselves and others with importance. To show respect is to have regard for other people’s feelings. It is a necessity to have respect as part of a healthy relationship. Everyone has the entitlement to be respected. The positive effects of having respect in a relationship are that all beliefs are valued. The people involved in the relationship are safe‚ valued and cared for. You are allowed to disagree at times and No is accepted as an answer. Following
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Sigmeund Freud was the first psychotherapist to say: "a child’s position in the sequence of brother and sisters is of very great significance for one course of his later life" (Richardson 12). One’s birth order position (whether born first‚ second‚ last‚ etc.)‚ one’s sex (male or female)‚ and the sex of one’s siblings affects the kind of person one becomes. People often say they can’t understand "how people from the same family can be so different". What they do not realize is that each sibling
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