experiment is to determine the rate law and the activation energy for the reaction between persulfate ion‚ S2O82-‚ and iodide ion‚ I-: S2O82-(aq) + 2 I-(aq) 2 SO42-(aq) + I2(aq) The rate law can be written as Reaction rate = (1) Where m and n are the orders with respect to S2O82- and I-‚ respectively‚ and k is the rate constant. Determining the rate law involves determining the values of m and n. The temperature dependence of the rate constant is given by (2)
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that New York faces. A lot of these issues haven’t been fixed or even looked at. The mayor should be going over some of this issues and getting them fixed. Two problems that New York City faces are crime rates and financial problems. A huge problem that New York City has is the rate of crime. It has increased by a lot‚ the number of annual crimes right now is 449‚745. There have been a huge number of murders‚ rapes‚ and robberies in many neighborhoods. There has been a 400 percent increase
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Appendix B. This is from the appendixes in the 7th edition of financial accounting by Weygandt‚ kimmel‚ and kieso. Instructions; (a) Based on the information contained in these financial statements‚ determine each of the following for each company. Please show all numerical equations including numerator and denominator‚ not just a final number. Present your work in a comparative format using a table as illustrated: 1) Gross profit for 2008 PepsiCo Coca-Cola and Gross profit rate for 2008. 2) Percent
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The Rate Of Photosynthesis: Lab report 1) Construct a graph of your data 2) Using the graph‚ estimate the time at which 50 percent of the leaf disks were floating on the surface. The point at which 50 percent of the leaf disks are floating will be you point of reference for future investigations Using the graph the estimated time that roughly 50% of the leaf disks were floating on the surface was around the 10th minute. At the 10th minute our number rose up to
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American Obesity Rises The obesity rate in America has increased tremendously within the past 20 plus years. People have become more comfortable being heavier than the average. Society tries to enforce the idea of “slim” being “in”‚ while somehow contradicting itself by saying being comfortable in your own skin. The obesity rate in America has increased because of cultural changes‚ lifestyle habits‚ and genetics. Over the past 20 years‚ American culture has changed as a whole. Working men and
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The purpose of this practical is to investigate how the pulse rate of humans changes when they exercise. Someone who is physically fit can supply their muscles with enough blood‚ carrying glucose and oxygen‚ for an activity at a lower heart and breathing rate. The fitter you are the lower your resting heart rate. You and your classmates will be the humans investigated. SAFETY: If you know you have any condition that affects you doing exercise‚ please make sure your teacher knows before you start
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Rates of Reaction Coursework Aim: To find out how different concentrations of sodium thiosulphate (Na S2 O3) affects the speed of its reaction with Hydrochloric acid (HCL). Introduction When Sodium Thiosulphate and Hydrochloric acid react they produce a cloudy precipitate. Both of the chemicals are clear solutions and they react together to form a yellow precipitate of sulphur‚ the equation for this reaction is: Na2 S2 O3 + HCL‚ H2 O + NaCL + SO2 + S Sodium Thiosulphate + Hydrochloric
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Lower education rates will raise recidivism rates because many prisoners who lack education and re-enter society will not be self-sufficient as education provides the basis for employment. Heather Ongley Lorena Quintero Amanda Winter Darren Robinson CJA/334 Philip Russo September 17‚ 2012 Introduction Before understanding the research to be conducted‚ one must understand the who‚ what‚ when‚ and why of the issue. Many people know and understand that with a better education they will
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Determining Order from Rates of Reactions AP Chemistry Purpose The focus of this experiment is to recognize that when aqueous solutions of potassium iodate ion (KIO3-) and bisulfite ion (HSO3-) are mixed‚ a series of reactions will occur‚ and the final reaction is signaled by the appearance of a dark blue color. My partners and I investigate how the concentration of the reactants affects the rate of reaction. The purpose of this lab is to find
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sexual abuse. What is the main cause of crime and its imperative relationship to poverty? Such a question at first may seem unanswerable because we could never pin point the exact cause of such worldwide problems. Crime and poverty have been around from time was time and there is no doubt that crime is on the increase not only in the world but also in Philippines. Nevertheless‚ although there are many who see crime as a means of survival there are others who indulge in criminal acts for mere fun
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