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)
Free Chemical reaction Chemical kinetics Chemistry
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 change in operating income from 2007 to 2008. 3) Accounts receivable turnover for 2008. 4) Days sales in receivable for 2008. 5) Inventory turnover for 2008. 6) Days inventory on hand for 2008. 7) Increase (decrease)
Premium Generally Accepted Accounting Principles Balance sheet Asset
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
Free Obesity Nutrition
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
Premium Heart rate
Chapter 5: Flow Rate and Capacity Analysis 5.1 Objective Chapter 3 introduced the three basic building blocks of process flow namely the (average) flow time‚ (average) flow rate and (average) inventory. It is followed by a sequence of three chapters‚ 4‚ 5 and 6‚ which examine each one of these measures individually. Chapter 5 is concerned with flow rate analysis and issues of capacity. The major managerial concept discussed in the in the chapter is that of the bottleneck. We use the notion
Premium Bottleneck Variable cost Marginal cost
Rate of Osmosis vs Solute Concentration Introduction: In nature‚ the quest to reach equilibrium‚ or the state of rest or balance due to the equal action of opposing forces (http://www.dictionary.com). Osmosis and diffusion are two ways that cells reach this equilibrium‚ without exerting energy. Due to the unique nature of the phospholipid bilayer‚ small molecules can pass through the semipermeable membrane easily‚ through diffusion (https://www.biologycorner.com). Water‚ however‚ has a slightly more
Premium Osmosis Concentration Diffusion
As the birth rates in recent years have been declined rapidly‚ the social issues that associate with older people’s social care come in quick succession. It is important to find out the way in solving these severe problems instead of ignoring. Therefore‚ this essay would analyze the approaches that different countries used and obtain the most sustainable way in order to achieve the social balance. Before comparing the elderlies’ social care approaches in different countries‚ providing the backgrounds
Premium Old age Sociology Health care
CHAPTER 1 INTRODUCTION RATIONALE Several years ago‚ people trusted their neighbors but nowadays‚ none is trustable because anyone can be a criminal‚ can be a suspect. Crime has been increasing in Philippines recently. The public’s fear of crime is a major concern for policymakers‚ more so if it involves a marked and sudden increase of violent and property crime. Meanwhile‚ violent crime generally includes crime of violence such as murder‚ gang robbery with firearm‚ rape and sexual abuse.
Premium Crime
DIVORCE RATES Today’s society had increased the number of divorce‚ it is more than ever before. People choose divorce as an easy way to get rid of their simplest problems that may occur in a marriage. First‚ couples get married too young. Sometimes people get married just because they are expecting a baby. Couples get married thinking that their relationship will be like a fairy tale‚ like movies‚ but they do not realize that marriage leads with normal problems that appear in the journey
Free Marriage Divorce Adultery
high conflict and abuse during their marriages. Most divorces occur with couples who have drifted apart and handle everyday disagreements poorly. It is these “average” divorces that research shows are the most harmful to children. I believe divorce rates are so high because marriage is no longer meaningful seriously 50% of marriages in America end in divorce they might as well scrap the entire thing do people no longer understand what a vow is anymore? Seems like most of that 50% is either lazy and
Premium Divorce Alimony Marriage