"Experiment 4 determination of a chemical formula" Essays and Research Papers

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    Formula 1 Racing

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    * Formula One racing is one of the most revered sports in the world. In the auto-racing world it is second to none in class‚ prestige‚ history‚ and skill. The level of competition is immense and the window of entry is miniscule. This brings up one question: (what is the question?) Formula One racing’s history dates back to the 1950s when racecars were simple front engine‚ drum brake cars. Compared to the cars of today‚ they are dinosaurs‚ but they were the best of their time and a wonder to many

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    Chemical Proportionality

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    Chemical Proportionality (Carbonate and Hydrochloric Acid) Introduction: The purpose of this experiment is what happens when a solid substance‚ a metal carbonate is added slowly to a solution of an acid. We are finding methods of determining acid concentration. For us to balance certain equations‚ we will use a stoichiometry. For this experiment‚ we will need to set up the ratio and finding the concentration of HCI. Procedure: • Grab 4 different beakers. • Add a small amount of sodium carbonate

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    Determination of an Equilibrium Constant Abstract: In this experiment‚ two reactions were run to determine the molar absorptivity and the equilibrium constant of FeSCN2+. The main principles used in this lab are equilibrium‚ LeChatlier’s Principle‚ Beer’s Law and Spectrocopy. The first reaction was run to completion using LeChatier’s Principle and the second reaction was run to equilibrium. A spectrophotometer was used to measure absorbances. Using a graph of absorbance versus concentration

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    Chemical Properties

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    Element: Simplest form of matter to have unique chemical properties. Atom: The smallest particles with unique chemical identities. Nucleus: Center of an atom (composed of protons and neutrons). Proton: Have a single positive charge (+1). Neutron: Have no charge. Electron: Tiny particles with a single negative charge and very low mass (-1)/determines chemical bonding properties of an atom. Atomic Number: Number of protons in the nucleus. Atomic Mass: Approximate number of protons and neutrons

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    Determination of a Rate Law and Temperature Dependence of a Rate Constant By Marvin Coleman March 7‚ 2011 Abstract: From the shown calculations & graphical analysis‚ the experimentally determined rate law is rate = K[I-].969 [H2O2].991 and the experimentally determined activation energy is 59.50 kJ/mole. Introduction: The rate of a reaction varies at different temperatures and reactant concentrations. In this experiment‚ the orders and dependence of the rate constant of the products

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    Experiment 5 Gravimetric Determination of Sulfate Eisman E. Morales TA: Jackeline Pennywiit Chemistry 121 02/14/2011 Purpose: To determine the percent sulfate in a sample using a semimicro scale gravimetric procedure. Procedure: Refer to pages 41-42 of General Chemistry volume 1 Laboratory Experiments by Judith Casey and Robert Tatz‚ Hayden McNeil Publishing‚ 2010 Report Sheet See attached report sheet. Report Questions 1. Explain how your calculated value for percent

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    Empirical Formula PRE LAB

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    Sean Dowling  Julia Phaltankar  Mrs. Oakes  Chemistry w/ Algebra 10/G  February 18‚ 2015  Determining Empirical Formula Lab   Introduction:   One can find an empirical formula by taking a sample of a compound and dividing the  number of moles of one element in the compound by the number of moles of another element in  the compound to form a small whole­number formula. For example‚ in a sample of a made up  compound of oxygen and lead‚ one mole of lead has a molar mass of 207.2 g/mole‚ and oxygen 

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    Formula Student Car

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    STUDY 805 The design of a Formula Student race car: a case study A Mihailidis*‚ Z Samaras‚ I Nerantzis‚ G Fontaras‚ and G Karaoglanidis Department of Mechanical Engineering‚ Aristotle University of Thessaloniki‚ Thessaloniki‚ Greece The manuscript was received on 28 November 2008 and was accepted after revision for publication on 5 March 2009. DOI: 10.1243/09544070JAUTO1080 Abstract: This paper presents the procedure followed in order to design the first Formula Student race car of the Aristotle

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    Name: Name of lab partner: Date: Title: Determination of the valency of magnesium Objective: To study the quantitative relationship between the amount of reactant and products of a reaction. A known starting mass of magnesium and the measured collection of hydrogen gas will be used to determine the reaction stoichiometry and the valency of magnesium. Introduction: In Chemistry‚ stoichiometry is the study of the quantitative relationship between amounts of reactants and products of a reaction

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    Chemical Periodicity

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    Chemical Periodicity Engr. Imelda Galera De La Salle University-Dasmariñas Dasmariñas‚ Cavite Philippines ABSTRACT Chemical periodicity was demonstrated using different samples of elements from Group IA‚ IIA and IVA. These samples are: Li2CO3‚ Na2CO3‚ K2CO3‚ MgCO3‚ CaCO3‚ BaCO3‚ Carbon‚ Tin‚ Silicon and Lead. Each sample was placed in a test tube‚ (one sample and one test tube) and the physical color‚ appearance and state was defined. Water was used to test the solubility of the element

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