Using colorimetry to find the order of a reaction introduction Coloured solutions absorb some of the wavelengths in the visible region of the electromagnetic spectrum. A colorimeter can be used to measure the amount of light absorbed by a solution (the absorbance) and this is proportional to the concentration of the coloured species present. In this experiment you will use a colorimeter to investigate the reaction between bromine and methanoic acid:- Br2 (aq) + HCOOH (aq) ↓ 2Br-
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ECONOMICS Economic Problem * Unlimited wants‚ limited resources Economic Systems * Questions to answer: 1. What to produce? 2. How much to produce? 3. How to produce? 4. For whom to produce? * Criteria to classify economic systems 1. Productive resources owned by private individuals (private sector) or government (public sector) 2. Role of market forces of demand and supply in allocating resources‚ determining prices‚ distributing incomes 3. Role of government in production
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IB Chemistry Summary- By Paul Li & Silvia Riggioni TABLE OF CONTENTS Table of Contents............................................................................................................................................................ 1 Atomic Theory................................................................................................................................................................ 3 The Electromagnetic Spectrum.............................................
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been produced by the IB‚ for teachers to use in the examination sessions in 2012 and 2013. It should be noted that most tasks previously produced and published by the IB will no longer be valid for assessment after the November 2010 examination session. These include all the tasks in any teacher support material (TSM)‚ and the tasks in the document tfolio tasks 2009 The tasks in the in the 2012 examinations but N O T in 2013. Copies of all TSM tasks published by the IB are available on the
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[Date] [Date] mukul88 [company name] mukul88 [company name] Semiconductor industry: Reasons of slowdown and its future. A study Semiconductor industry: Reasons of slowdown and its future. A study INTRODUCTION The semiconductor industry lives - and dies - by simple creed: smaller‚ faster and cheaper. The benefit of being tiny is pretty simple: finer lines mean more transistors can be packed onto the same chip. The more transistors on a chip‚ the faster it can do its work. Thanks in
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LO 1 Define psychology. “The study of behavior & mental process” LO 2 Describe the scope of psychology and its subfields. “The psychology is a broad field that includes many perspectives and SUBFIELDS. APA the American Psychological Association and the APS The Association for Psychological Science. Psychologists conduct two major types of research Basic research which is “often done in universities” and focuses on collecting data to support (or refute) theories and gathers knowledge for the sake
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The education system I work in follows the curriculum and guidelines set forth by the IB system for the primary‚ middle school and diploma program. I am new to the IB system‚ the curriculum structure and the grading criteria. For the 2013/14 school year I will be working directly with the learning support coordinator as a learning support assistant for two students. My background originally is child and youth work where I have been trained to work with adolescents providing behaviour management‚
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c IB DIPLOMA PROGRAMME PROGRAMME DU DIPLÔME DU BI PROGRAMA DEL DIPLOMA DEL BI M05/1/A1ENG/HP1/ENG/TZ0/XX/M MARKING NOTES REMARQUES POUR LA NOTATION NOTAS PARA LA CORRECCIÓN May / mai / mayo 2005 ENGLISH / ANGLAIS / INGLÉS A1 Higher Level Niveau Supérieur Nivel Superior Paper / Épreuve / Prueba 1 5 pages/páginas -2- M05/1/A1ENG/HP1/ENG/TZ0/XX/M These marking notes are confidential and for the exclusive use of examiners in this examination session. They are the property of the International
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English Language & Comprehension: Answers in Last Page Directions—(Q. 1–5) Some of the sentences have errors and some have none. Find out which part of a sentence has an error and blacken the rectangle [■] corresponding to the appropriate letter (A‚ B‚ C). If there is no error‚ blacken the rectangle [■] corresponding to (D) in the Answer sheet. 1. Though there is hourly bus service on this route (A) a number of people are still suffering (B) as there is no bus shelter here. (C) No error.
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Lucian Skerjanec Date: 23/11/12 IB 11 TOK Mr. Bryant Theory of Knowledge IB 11 Semester 1 Test Review Guide Propositional Knowledge and “Knowing That” Plato and his students began studying knowledge by analyzing if it was valid. They came to conclude that for knowledge to be certain‚ it must… Can be described and communicated to anyone effectively and accurately. It must be absolutely convincing to anyone you communicate with. A “proposition” is a formal statement of convincing knowledge
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