A KINETIC STUDY OF AN IODINE CLOCK REACTION PURPOSE To investigate the kinetics of the reaction that occurs between iodide and persulfate ion. You will: (1) determine the rate law‚ (2) determine the numerical value of the rate constant at room temperature‚ (3) explore the effect of temperature on the reaction and determine the activation energy (Ea)‚ and (4) investigate catalytic activity of selected metal ions on the reaction. INTRODUCTION Reaction times vary from picoseconds (10-12 seconds)
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Tro’s Chemistry Chapter 13 – Chemical Kinetics Page 1 of 13 Acknowledgements: Many of the images are adopted from Tro’s textbook‚ the only purpose of which is to enhance student learning. Key terms‚ concepts‚ skills: Refer to pp 599 – 601. Review questions: 3 – 24. Suggested problems: 25‚ 27‚ 33‚ 39‚ 43‚ 53‚ 57‚ 59‚ 69‚ 73‚ 75‚ 81‚ 93‚ 103. 13.1 & 2 Introduction to the Rate of a Chemical Reaction • kinetics is the study of the factors that affect the speed of a reaction and the mechanism by
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language if you know how to do it and Avoid using facial expressions e.g.‚ a frown as this could upset them and make them think that something is wrong Children and young people with autism‚ they can find it easier to understand the world around them through visual aids. Teachers may use a visual timetable showing times and simple drawings of the activities‚ so that the child or young person knows exactly what they will be doing and when. A child or young person how has Poor vision or blindness
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Child Day Care Centers that want to gain a competitive advantage. This paper will explain how ICT implementation in conjunction with the definitions above can help providers in child care related fields gain new competitive advantages in child care. The value – added service will add a competitive advantage‚ the use of “informational systems” helps to update and analyze information for the organization and how innovations keep a “competitive
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one hears and use judgement about how they are to teach the students. Discretion is also used in deciding what materials and teaching direction will be taught‚ given the wide variety of resources there are and all the different regulations from either districts to state wide policies that must be used correctly. It is an ongoing‚ difficult choice as to how a teacher prepares to teach their students as No Child Left Behind has come into effect and has modified how things should be taught. As a result
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Different ways of looking at the world product different knowledge and thus different perspective come to be associated with their own concepts and theories. The concepts and theories of a particular perspective offer us with distinctive thinking tools with which tp craft ideas about organisations and organising. The more knowledge you have of multiple perspectives‚ concepts and theories‚ the greater will be your capacity to choose a useful approach to dealing with the situation you face in your
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Question 1 How can graphics and/or statistics be used to misrepresent data? Where have you seen this done? Answer: It is a well known fact that statistics can be misleading. They are often used to prove a point and an easily be twisted in favor of that point. Statistics‚ graphics and database are used in medical field to approve‚ prove or disapprove theories‚ analysis and interpretation of ailments‚ medications and its impact and treatment and its effectiveness. As noted by Nursing Research (2011)/
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Buying a used car is not an easy decision. There are many places to buy a used vehicle today. A few examples would be a reputable car dealership‚ a certified pre-owned lot‚ an online ad‚ or a private individual like craigslist. You have many options to choose from‚ but some options are better than others. There are many vehicles that have been in accidents‚ are not regularly maintained‚ or have a rolled back mileage gauge. Three things that you can do to avoid choosing the wrong car are finding out
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Understanding how to behave in a way that supports effective working. 2.1 – Explain the purpose and benefits of setting high standards for own work. By setting yourself high standards for your own work you are doing the best you can‚ by doing this you will get recognised in a positive way and proving yourself to your colleagues. High standards create positive challenges and show your achievements whilst improving yourself on a daily basis. By speaking with managers or colleagues about finished work
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The effect of temperature on the rate of maggot movement Research and Rationale This experiment is aiming to analyse the behaviour of maggots when they are exposed to light and the effect of that on their movement rate. Behaviour is the way in which animals respond to external factors is known as behaviour. As animals become bigger their behaviour becomes more complex. This is because larger animals tend to have a more complex nervous and hormonal system. Two of the types of behaviour are called
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