Abstract The following experiment details the effect of different concentrations of catalase on the production of oxygen and water through the breakdown of Hydrogen Peroxide. In this experiment paper disc where coated in varying concentrations of catalase‚ 0‚ 25‚ 50 75 and 100%. The time taken for the disc to float between two markers on the side of a glass was then recorded. This experiment demonstrates that the higher the concentration of enzyme used the greater the production of oxygen on the paper
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investigation: The effect of solute concentration on osmosis in potatoes. Research question: What is the solute concentration of a potato? Hypothesis: Osmosis is the movement of water across the membrane from an area of high concentration to an area of low concentration. The osmosis continues until the solute concentrations are equal in both areas. In this experiment‚ we put pieces of potatoes into test tubes with sugar solutions of different concentrations and leave them there over night. It
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Controlled Assessment: Osmosis of a Potato [pic] Osmosis: Osmosis is the movement of substances through a partially/semi permeable membrane from an area of high concentration to an area of low concentration to balance of the concentration of the two sides. Biological membranes do allow water to pass through‚ but water will have no net movement unless osmosis takes place. Preliminary Method I have chosen to investigate the factor of the weight of potato strips after set amounts of time
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costs by $50. $225 The profit per acre of cantaloupes would have to increase by $99.50. 11. a. No. e. Yes. 13. c. Yes. Profits would increase by $7×1‚000=$7‚000. 15. b. This constraint is nonbinding and its RHS could by 0.15 without affecting the solution. 17. c. Regular octane rating = 90.0‚ supreme octane rating = 102.11. 19. b. Location 6. 21. b. Macon. Each additional unit of capacity there increases costs by $36.45 (which is the cheapest way to increase capacity). e. $1 extra. 23. c. $0. 25.
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Journal of Knowledge Management Practice‚ Vol. 12‚ No. 3‚ September 2011 A Study Of The Predictive Effect Of Pre-Service Teacher Personal Knowledge Management Competency On Their Instructional Design Skills Eric Cheng‚ The Hong Kong Institute of Education‚ Tai Po‚ Hong Kong ABSTRACT: This paper aims to examine the relationship between the personal knowledge management (PKM) competency of pre-service teachers and their instructional design skills. Supporting the sustainable development
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For this data analysis project‚ I conducted and experiment to investigate how the concentration of an acid affects the rate of the reaction. I have set up the experiment’s equipment as shown on figure 1. As you can see by figure 1‚ I have used the reaction between sodium thisoulphate solution and hydrochloric acid (HCL) to come up with results that will help me draw conclusions regarding the effects of the concentration of the acid. I decided to use this particular reaction due to the fact that the
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an Introduction and conclusion for this case. Please refer some company background and data that base on the case for introduction (I put the link for this case on other attachment). I already got the answer for question 1-3. Need a summary of my solution for conclusion. About 2 pages total. Question : Nike‚ Inc.: Cost of Capital 1 What is the WACC and why is it important to estimate a firm’s cost of capital? Do you agree with Joanna Cohen’s WACC calculation? Why or why not? 2 If you do not agree
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Determining the unknown concentration of HCl via heat of neutralization of a reaction involving strong electrolytes and weak electrolytes. Myeongwon Lee 20522885 Partner: Frank Wong TA: Afsoon CHEM 120L – Earth Science & Chem 149 Section: 004 Tuesday‚ November 26th‚ 2013 Introduction All chemical changes are accompanied by change in energy and this energy is in form of heat. The energy change of a reaction that happens at constant pressure is defined as heat of reaction or enthalpy change and the
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Scenario Solution LANCELOT PALMER HSM/220 JANUARY 26‚ 2015 SHANA NICHOLSON Scenario Solution To create opportunity for all through education‚ training and personal development. It can be difficult for a high school graduate to find employment because of their lack of experience and training‚ this is magnetized when the student becomes a dropout. A large percentage of high school dropouts are doomed to a life of failure‚ because they are not equip with the basic tools to gain gainful or any other
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Group 4 Internal Assessment Partners: Bhavya and Katherine Research question: Does the concentration (mol dm3) of sulphur dioxide in wine rise or fall when exposed to air for different time periods (0‚ 75‚150‚225‚ 300 minutes)? Purpose: Many adults enjoy the consumption of wine but are not aware of the different preservatives and chemicals that are added to the drink. Sulphur Dioxide‚ which is added to many food products including wine because it acts as a reductant‚ is ‘well known as a poisonous
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