Aims The aims of this investigation are: 1. To find the rate equation of the reaction of hydrogen peroxide and iodide ions. This will be achieved by using an iodine clock method and colorimetric analysis. 2. Draw a graph of rate against concentration for each reactant (Hydrogen peroxide‚ potassium iodide and H+ ions). 3. Finding the order for each reactant 4. Finding the rate-determining step. 5. Proposing a mechanism for the reaction. 6. Using Arrhenius’ equation to find the activation
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Interpretation and Evaluation of Results Interpretation: The results from the experiment determining the effects of pH on enzyme activity show that as the independent variable‚ pH‚ increases the dependent variable‚ percentage transmission‚ decreases. This is shown in the results as at the lowest pH‚ pH 4.0 the average percentage transmission is at its highest at 97%. At the highest pH‚ pH 8.0 the average transmission is 78.5%. This is also supported from the graph as it produces a negative gradient
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Assess the strengths and limitations of using overt participant observation as a means of investigating police attitudes. (15 marks) Overt participant observation involves the researcher being open with the group they are going to study. This means they are able to over-see the experiment that is taking place whilst being involved in it. A positive of using this method when researching police attitudes is that as the researcher will be involved in the experiment; they will gain first-hand experience
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Contents Abstract…………………………………………………………………………………….2 Methodology……………………………………………………………………………..3 Results………………………………………………………………………………………4 Introduction………………………………………………………………………………9 Discussion……………………………………………………………………………….11 Reference………………………………………………………………………………..15 Appendix…………………………………………………………………………………17 Abstract This study hypothesized that international students in Australia prefer
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Investigating the Degree of Structure in the World-Economy Using Concepts From Entropy Theory Salvatore J. Babones‚ The University of Sydney Address: Room 131 A26 - R.C. Mills The University of Sydney NSW 2006 Australia Email: sbabones@sydney.edu.au Investigating the Degree of Structure in the World-Economy Using Concepts From Entropy Theory ABSTRACT: The social and geographical structure of rewards in the modern world-economy has been incredibly stable over time. According to data
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How Surface Area Affects the Motion of a Falling Object Introduction During this investigation‚ varying surface areas of objects will be explored in a manner observing the motion as they fall. Most predominantly‚ this motion encircles speed. Speed is calculated from the formula below‚ and hence is directly proportionate to time taken when the distance travelled remains a constant. Speed = Distance/Time Surface area is likely to affect the time taken for an object to complete a descent‚ and
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STANDARD ENGLISHES: SPEECH AND WRITING This part or chapter focuses on the aspects of what we need to know in order to help pupils or students learn more about language and literacy skills. It is hoped that the focus on spoken and written language can‚ however‚ be read as symptomatic and as illustrative of the complex relationship between knowledge about language‚ on the part of teachers and students‚ and literacy skills. The function of spoken language grammars are interpersonal and high reciprocal
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Seung Soo (Jason) Lee 002213-065 Internal Assessment – Investigating the Relationship between Concentration of Sodium Chloride and the Rate of Reaction of Enzyme Amylase Research Question: How will changing the percentage of sodium chloride concentration affect the rate of reaction of enzyme amylase‚ measured using the absorbance of starch and iodine with a spectrophotometer. Introduction: Amylase is an enzyme that is involved in the human digestive process. Found in both the human pancreas
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Investigating the rate of reaction between Marble Chips (Calcium Carbonate) and hydrochloric acid Aim. In the investigation I am going to find out how the surface area affects the rate of reaction by measuring the amount of gas produced and weight loss in a reaction between small/large pieces of Marble Chips (Calcium Carbonate) and Hydrochloric acid per minute. Hypothesis. The rate of reaction increases when the surface area of a solid reactant is increased. This happens because by
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Unit 39: investigating international business P5: understand the strategies used by international businesses page: 14 Introduction Unit 39 is all about investigating international business. This P is the final assignment. My suggestions are approved by the financial department as well as by the board of directors. My senior made me in charge of the strategy. The next step to take before entering Australia is to construct a strategy about
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