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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Eliza Solomon EE Notes from texts Biology section: Citation: “Evolutionary Psychology: An Introduction‚ Second Edition” by Lance Workman and Will Reader. Cambridge University Press. Printed in 2004‚ 2nd edition in 2008 in the UK. Published in NYC. “The mind‚ therefore‚ is seen as equipped with the species-specified ‘instincts’ that enabled our ancestors to survive and reproduce and which give rise to a universal human nature. This idea is in sharp contrast to the adhered
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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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Mathematics is the Sphere of Life All is Numbers‚ is still echoing from the walls of the White City‚ when once the great Pythagoras said it on an early sunny morning to his disciples. No great discoveries in history every made‚ without the intervention of this mystical ray we call Mathematics. Einstein in his general relativity theory‚ to prove that the path of a ray of light‚ in the presence of a gravitational field‚ is curved and never straight used intensely the non-Euclidean geometry
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Examples of IB Exam papers_P2s Yellow: Single party states Green: The Cold War “In order to achieve and retain power a leader of a single-party state needed to be ruthless‚ blind to human suffering and yet charismatic.” To what extent do you agree with this assertion? Account for the rise to power of one of the following: Castro; Mussolini; Nasser‚ Hitler‚ Stalin‚ Mao. How‚ and to what extent‚ did the conferences at Yalta and Potsdam (1945) contribute to the origin of the
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Environment The highest form of pure thought is in mathematics. ~Plato Maria Montessori believed that human intelligence is no longer based on natural intelligence but on mathematical intelligence. Humans have moved beyond the innate survival instincts of early humans and moved toward an analytical awareness of the world. Math is more than math facts and computations. It deals with shape‚ space‚ patterns‚ symbols and the relationships found therein. Mathematics: Birth to Age Three Learning about patterns
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TOK Reflection: Mathematics To what extent is math relevant to your life and the lives of others you know and how can it become an even more viable area of knowledge. “In mathematics I can report no deficience‚ except it be that men do not sufficiently understand the excellent use of the Pure Mathematics.” Roger Bacon (1214-1294) Mathematics: the abstract science of number‚ quantity‚ and space; a subject considered by many to be useless‚ a waste of time‚ and too difficult. “When am
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English Paper Two Tips 1. Look at past questions and use them to break down your texts for revision If you look through past paper questions‚ you’ll spot that the sorts of questions you receive will always be about generalised things. Off the top of my head‚ things like Setting‚ Character‚ Beginnings and Endings‚ Death‚ Love‚ Chronology etc. all tend to crop up with reassuring regularity. So‚ this is the way in which you should approach your texts when revising them. Remember that in the actual
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this unit is to carry out a practical investigation of a topic chosen from a set of options supplied by OCR. In the course of the investigation‚ there will be an opportunity to look in depth at an aspect of computing that goes beyond the subject matter outlined in A451. The tasks will require a significant element of practical activity‚ which must be evidenced in the report and which will form a major element of the assessment. The topics will enable practical investigation and some supplementary
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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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