reaction than the other test tube. Which simply contained 10 mL of 3% hydrogen peroxide. The factor that affected the reaction rate was that the manganese was seen as a catalyst. The reason collision theory relates to this experiment is due to the fact that the catalyst creates a higher activation energy and this causes more collisions‚ which increases the reaction rate. In the second experiment‚ the Alka Seltzer tablet was
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This I Believe I believe in caffeine. I believe in caffeine because it keeps me alert‚ not quite awake‚ but alert. After a full night of studying‚ cramming on procrastinated homework‚ or just refusing to go to sleep‚ caffeine keeps you alert enough to be aware of the happenings of your day. But why would a 17 year old girl believe in caffeine‚ a chemical usually depended upon by truck drivers and stressed out adults working a daily 9-5? This is because of a 17 year old girl’s awareness of the
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Discussion The purpose of this experiment was to determine if splitting a bean would affect its rate of respiration. Splitting a bean does not impact its rate of respiration. This is shown in the data‚ while the average rate of respiration for Whole beans is 1.35 and the rate of respiration for 1.16‚ the standard error of the mean is .15. Because the standard error of the mean is so high‚ they overlap in both of the data sets‚ which shows that the data is very similar. This is better shown in the
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iii TABLE OF CONTENTS Title Page…………………………………………………………….i Acknowledgement………………………………………………….ii Table of Contents…………………………………………………..iii-iv Chapter I: The Problem A. Introduction…………………………………………..1-4 B. Statement of the Problem………………………….4-5 C. Importance of the Study……………………………5 D. Scope and Delimitation…………………………….5 E. Methodology…………………………………………..6 F. Definition of Terms…………………………………..6 Chapter II: Presentation‚ Analysis and Interpretation
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Effect of osmosis rate on different surface areas‚ depending on different types of water solution An investigation showing the effect of surface area on osmosis rate‚ including some different types of water concentration. Osmosis is a type of passive (not requiring energy) transport of water molecules across partially permeable membrane‚ from an area of high water concentration into area of low water concentration. But how does surface area affect rate of osmosis? Surface area plays important
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Experiment 11b: Isolation of Caffeine from a Tea Bag October 12‚2012 Purpose: The objective of this experiment is to extract caffeine from tea bags using the method of extraction. After the caffeine is extracted it is then compared to the nutritional facts amount per serving on the tea bags box. Supplies: Glassware: 1. 50.0 m L graduated cylinder 2. 150.0 mL beaker 3. 2-glass stirring rod 4. 6-test tubes 5. 2-glass pipettes 6. 2-50.0 mL Erlenmeyer flasks 7. glass funnel Hardware:
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of the Eurocurrency market? 5. Why do interest rates vary among countries? Why are interest rates similar for those European countries that use the euro as their currency? Small Business Dilemma Use of the Foreign Exchange Markets by the Sports Exports Company (see textbook‚ 8th edition) Chapter 4 Questions 1. Assume that the U.S. inflation rate becomes high relative to Canadian inflation. Other things being equal‚ how should this affect the (a) U.S. demand for Canadian dollars‚ (b) supply
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gradient” (Taylor and Bruenn‚ 2009)‚ moving water from a high to a low concentration‚ so in this case water would move from the potato tuber to the sucrose solution reducing the weight of potatoes. Pospíšilová (1970) also states that the water absorption rate of tissue will decrease if
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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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5.0 Contents 8 5.1 Factor That Effect Exchange Rates in Long Run 8 5.2 Exchange rates in short run (A supply and demand Analysis) 10 5.3 Factor that determinant exchange rate 11 5.3.1 Shift the demand for domestic assets 11 5.4 Other Factors that effects exchange rates and its volatility 12 5.4.1 International financial crises 12 5.4.2 Speculators effect 12 5.4.3 Central bank intervention policy 13 5.2 The effects of exchange rate and volatility 14 5.2.1 International trade‚ export
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