Support Material Exemplar Starter Pages GCE Chemistry B (Salters) OCR Advanced GCE in Chemistry B (Salters): H435 Unit: F336 Chemistry Individual Investigation This Support Material booklet is designed to accompany the OCR Advanced GCE specification in Chemistry B (Salters) for teaching from September 2008. Contents Contents 2 Support Materials 3 Choice of investigation topic 4 Health and Safety 33 Other forms of support 35 Support Materials These support materials should
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OBJECTIVE To determine antiseptics evaluation by the filter paper disc method INTRODUCTION An antiseptic is a substance which inhibits the growth and development of microorganisms. Antiseptics are a diverse class of drugs which are applied to skin surfaces or mucous membranes for their anti-infective effects. This may be either bacteriocidal or bacteriostatic. Their uses include cleansing of skin and wound surfaces after injury‚ preparation of skin surfaces prior to injections or surgical procedures
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What is a Medical laboratory technician? A laboratory technician process specimens and perform laboratory tests ordered by physicians and medical technologists. Many specialize in cytotechnology‚ hematology or microbiology. As a medical technician‚ you may perform tests on saliva‚ blood‚ and tissue samples and then be responsible for recording and sharing the results with the physician. Performing these tests often requires the ability to operating various medical machines and equipment. You may
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various instrumental techniques such as X-Ray crystallography and other experimental techniques which can be used to tell us where the atoms are located in a molecule. Using advanced techniques‚ very complicated structures for proteins‚ enzymes‚ DNA‚ and RNA have been determined. Molecular geometry is associated with the chemistry of vision‚ smell and odors‚ taste‚ drug reactions and enzyme controlled reactions to name a few. Molecular geometry is associated with the specific orientation of bonding
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have in their pocket. To be frank‚ organically grown food isn’t nutritionally better than regular foods; in fact‚ some regular foods can be genetically modified to have higher concentrations of nutrients so organic loses in that regard. However‚ one of the main reasons why I advocate for organic food (if you have the means) is that its safer for your long term health and below are my reasons why. Two years ago I wrote a research paper on the environment‚ genetically modified crops and crops
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Contents Of Assignment Problems Problems For Chapter 2 Assignment Problem Two - 1 (Held-For-Trading and Available-For-Sale) Assignment Problem Two - 2 (Fair Value And Equity Methods) . . . . Assignment Problem Two - 3 (Cost And Equity Methods) . . . . . . Assignment Problem Two - 4 (Classification Of Equity Securities) . . . 1 1 1 2 3 Assignment Problem Six - 3 (Consolidated Cash Flow Statement - Profits) . . . . Assignment Problem Six - 4 (Completed Consolidated Statements With Questions)
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Equilibria. Studies Related to the Conformational Properties of 2-Methoxytetrahydropyran and Related Methyl Glycopyranosides. Canadian Journal of Chemistry 1969‚ 1966–1968. (5) M. L. Wolfrom‚ Donald R. Husted; the Beta to Alpha Conversion of Fully Acetylated Sugars by Alkali. J. Am. Chem. Soc.‚ 1937‚ 59 (2)‚ pp 364–365 (6) Perles‚ C (9) Spectral Database for Organic Compounds (SDBS); mass spectrum; SDBS No. 7727; HSP-49-567;http://sdbs.db.aist.go.jp/sdbs/cgi-bin/direct_frame_top.cgi/ (accessed 21 February
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Chemistry plays an important part in studying Biology. It answers some questions that Biology could not explain alone. Questions like: How does an organism convert foods for energy? How do plants use sunlight and water into all the things that cells needed to grow and reproduce? How does the basic unit of life passed through generation to the next? Here are some contributions of Chemistry in Biology: • Within atomic theory‚ chemistry contributes towards biology in the understanding of atoms
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Appendix APPENDIX 1 Chemical tests for functional groups Homologous series/ Typical compound Functional group(s) Alkanes CH3CH3 ethane C – C and C–H Alkenes CH2 = CH2 ethene C=C Chemical tests/Observations Add liquid bromine in ultraviolet light (or sunlight): White fumes of HBr liberated; decolourisation of bromine occurs slowly (a) Add Br2 in CCl4 at room temperature: Decolourisation of bromine occurs immediately CH2 = CH2 + Br2 → CH2BrCH2Br (b) Add acidified
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Organic VS. Non-organic Food‚ Good or Bad? Unfortunately‚ most organic food is disappearing‚ because people are not taking the time to buy it. People are buying non-organic because the food is cheaper‚ easier to find‚ and full of nutrition. But why is organic food disappearing when it has more nutrition‚ better tasting‚ and ecosystem diversity. What are people really doing? People now at days choose to buy non-organic food because it’s cheaper‚ easier to find‚ and full of nutrition. When coming
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