...disposing has become a critical issue that everyone should be aware of. The contents in batteries such as mercury, lead, cadmium, lithium and nickel are hazardous to human health when batteries are erroneously disposed of. Contamination of the environment may also be severe due to the release of the hazardous contents in the batteries. No doubt that the blame is on the actions of mankind. People choose to ignore the proper way of disposal of the wastes that no longer useful to them. The direct and fastest way of getting rid of them is to dump into the dustbin, which eventually ends up in the landfill. As the flow of living has become more hectic, convenience of actions has prioritized the living standard of most people, thus neglecting the environmental issue that may arise. The lack of awareness on the harmful effect that the disposed batteries may bring is also...
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...Physical chemistry is the study of macroscopic, atomic, subatomic, and particulate phenomena in chemical systems in terms of laws and concepts of physics. * Chemical kinetics, also known as reaction kinetics, is the study of rates of chemical processes. Chemical kinetics includes investigations of how different experimental conditions can influence the speed of a chemical reaction and yield information about thereaction's mechanism and transition states, as well as the construction of mathematical models that can describe the characteristics of a chemical reaction. * Chemical physics is a subdiscipline of chemistry and physics that investigates physicochemical phenomena using techniques from atomic and molecular physics and condensed matter physics; it is the branch of physics that studies chemical processes from the point of view of physics. * Electrochemistry is a branch of chemistry that studies chemical reactions which take place in a solution at the interface of an electron conductor (theelectrode: a metal or a semiconductor) and an ionic conductor (the electrolyte). * Femtochemistry is the area of physical chemistry that studies chemical reactions on extremely short timescales, approximately 10–15 seconds (one femtosecond, hence the name). The steps in some reactions occur in the femtosecond timescale and sometimes in attosecond timescales,[1] and will sometimes form intermediate products. * Geochemistry is the science that uses the tools and principles...
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...computerized (font: Times New Roman/font size: 12) Reading assign. Measurement Diff. system of measurement fundamentals and derive quantities scientific notation rules in significant figures conversion of units http://www.hep.man.ac.uk/babarph/babarphysics/physicists.html ) I.1 Science The intellectual and practical activity encompassing the systematic study of the structure and behaviour of the physical and natural world through observation and experiment. I.2 The Branches of Science The Physical Sciences * Physics: The study of matter and energy and the interactions between them. Physicists study such subjects as gravity, light, and time. Albert Einstein, a famous physicist, developed the Theory of Relativity. * Chemistry: The science that deals with the composition, properties, reactions, and the structure of matter. The chemist Louis Pasteur, for example, discovered pasteurization, which is the process of heating liquids such as milk and orange juice to kill harmful germs. * Astronomy: The study of the universe beyond the Earth's atmosphere. The Earth Sciences * Geology: The science of the origin, history, and structure of the Earth, and the physical, chemical, and biological changes that it has experienced or is experiencing. * Oceanography: The exploration and study of the ocean. * Paleontology: The science of the forms of life that existed in prehistoric or geologic periods. * Meteorology: The science that deals with the atmosphere...
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...and a job after school. The type of college the student goes to is very important too. It can affect where their job is or how much money they make. A veterinarian’s job is a good one and anyone with a passion for animals should try it including me. The education of a veterinarian is very important. In college and in high school education is important. In high school to get into a good college with veterinarian programs the student must take many courses. They include biology, chemistry, physics, calculus, trigonometry, statistics, environmental/earth science, English, computer science, history, and languages. The student must not only take these classes, but the student must get above a 3.0 GPA average to even think about getting into a veterinary college. Once the student gets into a college you must take many courses to get a job after words. In the first year the student must take English, zoology, and general chemistry. In the second year the student must take organic chemistry, general physics, and calculus. In the third year the student must take biochemistry and microbiology. Education as the student will now see is very important to the student’s future. The school the student goes to is very important for them to move on to a successful job in the future. One school that is out of the state of Georgia that is a college with veterinary programs is Cornell University. How the student gets into Cornell is complex, but...
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...The application of nanoscale materials and structures, usually ranging from 1 to 100 nanometers (nm), is an emerging area of nanoscience and nanotechnology. Nanomaterials may provide solu- tions to technological and environmental challenges in the areas of solar energy conversion, catalysis, medicine, and water treatment [1,2]. This increasing demand must be accompanied by “green” synthesis methods. In the global efforts to reduce generated hazardous waste, “green” chemistry and chemical processes are progressively integrating with modern developments in science and industry. Implementation of these sustainable processes should adopt the 12 fundamental principles of green chemistry [3–7]. These principles are geared to guide in minimizing the use of unsafe products and maximizing the efficiency of chemical processes. Hence, any synthetic route or chemical process should address these principles by using environmentally benign solvents and nontoxic chemicals [3]. Nanomaterials often show unique and considerably changed physical, chemical and biological properties compared to their macro scaled counterparts [8]. Synthesis of noble metal nanoparticles for applications such as catalysis, electronics, optics, environmental, and biotechnology is an area of constant interest [9–15]. Gold, silver, and copper have been used mostly for the synthesis of stable dispersions of nanoparticles, which are useful in areas such as photography, catalysis, biological labeling...
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...Chemistry “Chemical Reaction and the PH Scale” Chemical reactions are the heart of chemistry. People have always known that they exist. The Ancient Greeks were the firsts to speculate on the composition of matter. They thought that it was possible that individual particles made up matter. As you might imagine, it's useful to be able to measure the acidity of solutions. Scientists have come up with the pH scale for determining the concentration of acid in a solution so we can distinguish between solutions with varying acidity. A Chemical reaction is the outcome of two or more elements together results in the formation of a chemical bond between atoms and compound. Chemicals react together due to participating atoms. The reason why atoms react with each other is to reach a state in which their valence shell is filled. Reactions occur at different speeds, they have different rates of reaction. There are some things that must be considered in a chemical reaction. There are a few things that decide the course and speed of the reaction. One thing about chemical reaction is that, there is now known that there are three types of chemical reactions. They are classified into three types: exoergic (exothermic), endoergic (endothermic), and aergic (athermic). In these cases, energy is supplied, but the different types of reactions initiate the energy differently. First of all, Exoergic, or exothermic, reactions release energy during the reaction. ...
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...Herman Miller Darden Case Study 8Nov05.doc Herman Miller’s Design for Environment Program November 2005 Mark Rossi, Scott Charon, Gabe Wing, and James Ewell 1 Herman Miller launched its Design for Environment (DfE) program in the 1990s. At the core of the Herman Miller DfE program is the McDonough Braungart Design Chemistry (MBDC) Cradle to Cradle Design Protocol, which evaluates new product designs in three key areas: • • • Material Chemistry -- What chemicals are in the materials we specify, and are they the safest available? Disassembly -- Can we take products apart at the end of their useful life to recycle their materials? Recyclability -- Do the materials contain recycled content, and more importantly, can the materials be recycled at the end of the product's useful life? Herman Miller’s commitment to DfE includes requiring all new products be evaluated within the MBDC Protocol. Material Chemistry Assessment When Herman Miller launched its DfE program, the challenges for the DfE team were substantial: Learn how to use and integrate the MBDC protocol into the launch of new products, modify MBDC’s protocol to meet the needs and unique circumstances of Herman Miller, gather the data necessary to meet material evaluation criteria as required by MBDC’s material health protocol, gain acceptance from product development teams for design process changes, and complete all this work on a schedule that would not delay the launch of products. A core component...
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...MSc Chemistry (Final) Exam 2013 M.SC. CHEMISTRY (FINAL) EXAMINATION 2013 213 MSc Chemistry (Final) Exam 2013 ABBREVIATION M.Sc. Chemistry (Final) SUBJECT ABBREVIATION Environmental Chemistry ------------------------------------------------------------------------------ V Heterocyclic Chemistry --------------------------------------------------------------------------------- VI Oxidation / Reduction ---------------------------------------------------------------------------------- VII Spectral Analysis of Organic Compound -------------------------------------------------------- VIII Advance Organic Chemistry (Practical) -------------------------------------------------------- AOC Environmental Chemistry (Practical) --------------------------------------------------------------- EC Instrumental Methods of Analysis (Practical) -------------------------------------------------- IMA Result Late (Due to Previous Result) --------------------------------------------------- R.L Pre Result Late --------------------------------------------------------------------------------------------- R.L Result Late for UFM ------------------------------------------------------------------------R.L (UFM) 214 MSc Chemistry (Final) Exam 2013 M.Sc Chemistry (Final) Annual Examination 2013 Total Marks = 1200 Roll # 10016 10002 10018 Name Mehar Angiz Komal Arshad Noor Saba Father’s Name Ahmad Gul Arshad Sohail Aurang Zeb Marks 939 928 924 Position FIRST SECOND THIRD Institution / College Govt...
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...In the 4th quarter of 9th grade science we continued our study of chemistry with a focus on chemical formulas, chemical reactions, and stoichiometry. Formative assessments included practice questions on how to write proper names and formulas for chemical compounds, balancing equations, converting between chemical units, and titration problems. The lab experiments for the quarter consisted of a freezing point experiment, chemical flame test comparison, the activity series of four metals, production of hydrogen, and the titration of an unknown concentration of acid. Summative assessments for the quarter were an evaluation of the freezing point experiment, written exploration of the flame test experiment, and two unit exams on chemistry topics. In 10th grade students will study science topics related to biology, environmental science, and some...
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...CHEMISTRY CHEMISTRY (CLASSES XI–XII) Rationale Higher Secondary Stage is the most crucial stage of school education because at this stage specialised discipline based, content oriented courses are introduced. Students reach this stage after 10 years of general education and opt for Chemistry with a purpose of mostly for pursuing their career in basic sciences or professional courses like medicines, engineering, technology and studying courses in applied areas of science and technology at tertiary level. Therefore, at this stage, there is a need to provide learners with sufficient conceptual background of Chemistry, which will make them competent to meet the challenges of academic and professional courses after the higher secondary stage. National Curriculum Framework for School Education – 2005 recommends a disciplinary approach with appropriate rigour and depth with the care that syllabus is not heavy and at the same time it is comparable to the international level. It emphasizes a coherent focus on important ideas within the discipline that are properly sequenced to optimize learning. It recommends that theoretical component of Higher Secondary Science should emphasize on problem solving methods and the awareness of Syllabus for Secondary and Higher Secondary Levels 22 historical development of key concepts of science be judiciously integrated into content. The present exercise of syllabus development in Chemistry at Higher Secondary Stage is based on this framework...
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...Department of Chemistry College of Sciences University of Central Florida CHM 2046L Chemistry Fundamentals Laboratory (1 Credit) Course Syllabus Graduate Laboratory Instructor: Office: Phone: E-mail: Office Hours: | Instructor: Dr. Cherie YestrebskyOffice: CH 325Phone: 407-823-2135E-mail: cherie.yestrebsky@ucf.edu | University Course Catalog Description Illustration of chemical principles and introduction to the techniques of inorganic and physical chemistry. Course Overview The Chemistry Fundamentals Laboratory course is designed to give students an insight into the processes of experimental chemistry. The course provides a series of authentic, challenging, and relevant questions which students seek to answer through experimentation in a safe environment. Lab techniques like titration, spectroscopy, dilution, and measurement will be incorporated with critical thinking exercises to enhance the learning process and improve comprehension of fundamental concepts. An introduction to writing within the science discipline will be addressed each week. Course Objectives At the end of the semester, students will be able to: * Keep safety the first priority while working in the laboratory * Design a procedure to answer a key question * Model how writing is used in a variety of chemistry genres * Experiment with glassware & equipment in alignment with their intended function * Develop stronger critical thinking skills ...
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...my real interest was in chemistry. This interest led me to be fascinated with all the subjects related to it, Applied Chemistry during my undergraduate program and Chemical Engineering during my Master’s program. What is more, I am determined to take up chemical engineering as my lifelong pursuit. My formal advanced education in chemistry started with my undergraduate program in Applied Chemistry at the College of Chemistry and Chemical Engineering of XX University. As is often said, the journey of exploring the realm of knowledge and probing into the unknown is infinite and strenuous. However, to me, the desire to fulfill ambitions and the joy from discoveries prevailed over any sense of hardship. My undergraduate program was as rewarding as it was joyful. I believed that the most important task as a undergraduate was to lay a firm groundwork in terms of the basic knowledge and experimental techniques so that more advanced studies could be pursued. Based on this awareness, I decided that a good job in all the core courses, including experiment courses, was primary. I tried to understand the principle underlying each chemical phenomenon and how each principle was derived. To do so, I had to understand the textbooks thoroughly and supplement my classroom education with information from the Internet, the library, the lectures and other sources. This way of learning allowed me to become familiar not only with the core courses like Physical Chemistry, Principles of Chemical...
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...AS/A Level GCE GCE Chemistry A OCR Advanced Subsidiary GCE in Chemistry A H034 OCR Advanced GCE in Chemistry A H434 Vertical black lines indicate a significant change to the previous printed version. © OCR 2008 version 2 – February 2008 QAN 500/2425/5 QAN 500/2347/0 Contents 1 About these Qualifications 1.1 1.2 1.3 1.4 1.5 The Three-Unit AS The Six-Unit Advanced GCE Qualification Titles and Levels Aims Prior Learning/Attainment 4 4 4 5 5 5 2 Summary of Content 2.1 2.2 AS Units A2 Units 6 6 7 3 Unit Content 3.1 3.2 3.3 3.4 3.5 3.6 AS Unit F321: Atoms, Bonds and Groups AS Unit F322: Chains, Energy and Resources AS Unit F323: Practical Skills in Chemistry 1 A2 Unit F324: Rings, Polymers and Analysis A2 Unit F325: Equilibria, Energetics and Elements A2 Unit F326: Practical Skills in Chemistry 2 8 8 20 38 40 51 62 4 Schemes of Assessment 4.1 4.2 4.3 4.4 4.5 4.6 4.7 4.8 AS GCE Scheme of Assessment Advanced GCE Scheme of Assessment Unit Order Unit Options (at AS/A2) Synoptic Assessment (A Level GCE) Assessment Availability Assessment Objectives Quality of Written Communication 64 64 65 66 66 66 67 67 68 5 Technical Information 5.1 5.2 5.3 5.4 5.5 5.6 5.7 5.8 5.9 Making Unit Entries Making Qualification Entries Grading Result Enquiries and Appeals Shelf-life of Units Unit and Qualification Re-sits Guided Learning Hours Code of Practice/Subject Criteria/Common Criteria Requirements Arrangements for Candidates with Particular...
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...PROJECT ON NANO TECHNOLOGY CONTENT * INTRODUCTION * WHAT IS NANO SCIENCE? * IS THERE A NANO TECHNOLOGY? * NATIONAL NANO TECHNOLOGY INITIATIVE * CHEMISTRY’S ROLE IN NANO SCIENCE AND NANO TECHNOLOGY * NANO FABRICATION * NANO MEDICINE * RISKS OF NANO TECHNOLOGY * NANO TECHNOLOGY GOALS * SOCIETAL IMPLICATIONS * CONCLUSION INTRODUCTION There have been many influences and drivers for the development of technologies that allow functional components to be constructed at smaller and smaller scale. The semiconductor revolution in the second half of the 20th century was driven by cost, speed, novel function,and power consumption. Semiconductor science and its child, large-scale integration of electronic circuitry, have been responsible for an unprecedented paradigm change in almost every aspect of human life. The change is arguably even more profound than that which resulted from the industrial revolution. As we shall see later in this paper, although the fundamental limits of Moore’s Law have not yet been reached, this and the increasing energy consumption of these paradigm-breaking technologies will necessitate another paradigm shift in the near future.In terms of the influence of individuals, the development of what we now call functional nanoscience clearly owes much to several outstanding scientists, all of whom were awarded the Nobel Prize for their work. Shockley, Bardeen and Brattain’s discovery of the transistor,Kilby’s...
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...It shows that solar power can be used to synthesise different organic products. The yields were also like the reactions that used an electric heat source. This is important as it suggests that organic chemists can undertake more sustainable reactions without putting pressure on the environment. (ii) What was the authors’ overall plan? To make members of the science community aware that organic reactions can take place when powered by solar power. Currently, a large proportion of organic reactions that take place are extremely harsh on the environment. They want to make scientists aware that they could cut down on the amount of electricity they require by using solar power and therefore have less of a negative environmental impact. (iii) List the methods and techniques/instrumentation that the authors used They gave new satellite dishes reflective properties by covering them with Mylar tape. This reflective dish was then used to generate heat, when directed towards the sun, that was then used to power organic synthesis reactions. NMR and MS was used to analyse the products formed from these...
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