The Empirical Formula of Magnesium Oxide. Focus Question – Can the mass of magnesium combusted in excess oxygen be used to determine the empirical formula of magnesium oxide? Hypothesis – Combustion of Magnesium will generate data which can be used to calculate the EF of Magnesium Oxide Experimental Report: Data Collection and Processing Qualitative Observations: * The Magnesium burnt with a very bright flame. (as seen in figure 2 below) * White smoke was formed and some
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to break it down the cell will die‚ along with the organism itself. However with the aid of an enzyme‚ catalase‚ hydrogen peroxide is able to be broken down into an intermediate and thereafter harmless substances water and oxygen. The goal of this lab is to measure the reaction rate of this process in different substances such as a liver‚ a vegetable‚ and breast tissue. By using variables such a pH and temperature we are able to how the rate of reaction is altered or improved. If it has improved
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ENGLISH 227 CAREER COMPARISION FORMAL REPORT Tyrone Moore No letter of transmittal? TABLE OF CONTENTS INTRODUCTION................................................................................................3 LANDSCAPING CAREER…………………………………………………..4-6 Education/Training Employment/Compensation Work Conditions CARPENTRY…………………………………………………………………6-7 Education/Training Employment/Compensation CONCLUSIONS and RECOMMENDATIONS……………………………...8-9 REFERENCES………………………………………………………………
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borax in water. “Borax” is a naturally occurring compound; it is in fact the most important source of the element boron‚ and it has been used for many years as a water softening agent. Borax is a rather complicated ionic salt which has the chemical formula Na2B4O7•10H2O (Petrucci‚ 2007). When it dissolves‚ it dissociates as follows: Na2B4O7 • 10H2O(s) 2Na(aq) + B4O5(OH)42(aq) + 8H2O(l) rnx (1) The solubility product expression for this system is written below. Ksp = [Na]2
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CHEMISTRY EXPERIMENTAL REPORT SALLY LI INTRODUCTION: In chemistry‚ compounds can be distinguished by using the empirical formula. The formula provides the simplest positive integer ratio of elements in a compound. The empirical formula is largely useful in determining the ratio of elements within ionic compounds where the structure is of a non-directional nature of bonding where any ion at any time could be surrounded
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Formula of a Hydrate Lab Wednesday October 29‚ 2014 Chemistry Honors Purpose This lab was done to determine the percentage of water in a hydrate‚ which was CuSO4 ?H20. Not only the percentage of water can be found‚ the moles of water can be found per one mole of anhydrous salt. An anhydrous salt is a hydrate that lost its water. Using various lab equipment such as burners‚ crucible‚ and balance‚ and techniques such as the mass-to-mole ratio and mass to percentage‚ the percentage of water in a hydrate
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Company Proposal to build a website for S-N-F Electronics to increase sales and saving money with-in the company. S-N-F Electronics TITLE Team E: Keith Henningsen Heather Mapes Tyler Nooney 14 April 2013 Memo of Transmittal for Research Report Transmittal Correspondence TITLE TO: Management of S-N-F Electronics FROM: Team E (Keith Henningsen‚ Heather Mapes‚ and Tyler Nooney.) DATE: April 14th 2013 SUBJECT: Transmittal for research on establishing a website This is
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| Formal report | Professional Writing | | Maria | 10/20/2012 | | TABLE OF CONTENTS Introduction 1 Purpose‚ Scope and limitations 1 Application for all job specialties 1 Interpretation of results 2 Historical Prespective 2 Sources and methods 2 Chron-small business 3 American institute of cpa’s 3 The New York times 3 Accountant key 4 Washington consultants 4 Accountants next door 4 Wanted Analytics 5 Report organization 5 Formal Report Accounting
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Purpose Use a standardized potassium permanganate solution to analyze an unknown iron solution by using redox titration. Theory Reduction-oxidation titration is an analytical method based on electrons transferring between an oxidizing agent and a reducing agent in solutions. Chemical analysis can be built on Redox titration if four criteria are met: a) The reaction is completed in a thermodynamically spontaneous condition. b) The reaction is fast enough to give an operational result instantly
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Thermochemistry Laboratory Report Abstract The purposes of these three experiments are to determine the heat capacity of a calorimeter and with that data‚ confirm Hess’s Law and observe enthalpy changes within reactions. By measuring the change in temperature that occurs with the interaction of two different reactants‚ we were able to determine both the calorimeter constant and the change in enthalpy of a given reaction. The results were rather mixed‚ as some numbers more closely resembled the
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