Abstract This experiment is to study the effect of temperature on the rate of reaction between potassium permanganate with oxalic acid. We used 2cm3 of 0.02M potassium permanganate and 4cm3 of 1M sulphuric acid into a test tube. In another test tube‚ we placed 2cm3 of oxalic acid. We placed the test tubes in a water bath at 40‚ 45‚ 50‚ 55 and 60oC respectively. When the solutions have attained these temperatures pour the oxalic acid into the acidified permanganate solution and recorded the time
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Chapter 6 Brief Summary “Applied Performance Practices” Giving rewards for people with money or other finance are fundamental relationship of the employees‚ but its changes the meaning and value to each other. In the organization reward gives to the membership‚ seniority‚ job status‚ competencies‚ and performance. Membership and seniority based rewards potentially attract job applicants and reduce turnover. Job status almost every organization rewards employees to some extent on the basis of
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Lab #4: Aqueous Reactions Introduction: In this experiment we studied the two different types of aqueous chemical reactions‚ double replacement and single replacement. In a double replacement reaction one or both of the products is an insoluble ionic compound or otherwise known as a precipitate; or a non-electrolyte; or a gas. In a single replacement reaction there is typically a metal and an ionic compound consisting of a metal cation and a non-meatl anion. Singel replacement ractions occur when
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rate of reaction (mol dm-3 s-1) for the following chemical reaction: CaCO3(s) + HCl(aq) CaCl2(s) + H2O(l) + CO2(g) Research question: How does altering concentration (mol dm-3) of hydrochloric acid (HCl) affect the rate of reaction (g/s) for the following reaction: CaCO3(s) + HCl(aq) CaCl2(s) + H2O(l) + CO2(g) Background information: The reaction between calcium carbonate and hydrochloric acid is an example of a neutralization reaction between an acid and a base. Neutralization reactions involve
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International Journal of Business‚ Economics and Law‚ Vol. 1 ISSN 2289-1552 2012 DETERMINANTS OF DIVIDEND POLICY: THE CASE OF VIETNAM Nguyen Thi Xuan Trang Accounting Department Da Nang University of Economics 71 Ngu Hanh Son Street‚ Ngu Hanh Son District‚ Da Nang City‚ Vietnam Email: trangatax@gmail.com ‚ Tel: (+84) 0 914 745 649 ABSTRACT There were several researchers who investigated dividend policy in developed countries like the USA (Chang and Rhee‚ 1990)‚ the UK (Al-Najjar
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HACKERS Submitted by: Mariel A. Ricohermoso BSIT 3B Submitted to: Mr. Juan Leandro Achaval Hackers Summary: A Seattle boy Dade “Zero Cool” Murphy (Jonny Lee Miller) is arrested and charged‚ at the age of 11‚ with crashing 1‚507 systems in one day and causing a single-day 7-point drop in the New York Stock Exchange. And because of that he was banned to own or operate a computer or touch-tone telephones until his 18th birthday. Before Dade turns 18‚ his mother
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High School Students’ Conceptions about Energy in Chemical Reactions (focusing only in exothermic and endothermic reactions). Aim The aim of this study is to investigate students’ understanding of the energy concept in chemical reactions particularly in endothermic-exothermic reactions. Both qualitative and quantitative methodology was used for this investigation. A twenty-item multiple choice test was developed about the topic to measure the students’ understandings. This concept test was
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Reaction to Dr. David Callahan I was prepared to be interested in hearing this person speak‚ but when he started to list some “facts”‚ I started to tune out. The one that stood out for me was that‚ “billions of dollars have been lost for the music industry because of illegal downloading.” If people who downloaded the illegal music actually purchased it‚ yes- that would be more money in the big wigs pockets. However‚ many studies have shown (and I read another one on Techcruch right before seeing
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Chapter 1 Chemical Reactions and Equations Q.1. Why should magnesium ribbon be cleaned before burning in air ? Ans: Magnesium ribbon is a very reactive metal. When stored it reacts with oxygen to form a layer of magnesium oxide on its surface. This layer of magnesium oxide being a stable compound prevents further reaction of magnesium with oxygen. The magnesium is cleaned before burning in air to remove this layer so that the metal can be exposed to air properly. Q.2. Write the balanced
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Determinants of Economic Growth in Developing Countries: A Panel Cointegration Approach Zequn (Charlie) Li December 19‚ 2014 Economics 385 St. Olaf College Abstract Many factors influence the economic growth process. Especially‚ the inflow of foreign direct investment (FDI) has been found to play a crucial role in the economic growth of receiving countries. This paper examines determinants of economic growth in developing countries from 1991 to 2010. Using panel cointegration approach
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