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International Baccalaureate: Chemistry

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  • Peer Reviewed essays 1

  1. Investigating the reactivity of Iron, Zinc, Magnesium and Copper while reacting 2g of each metal with 5cm3 of HCl of concentration 1mol/dm3 and measuring the volume of hydrogen formed in 60 seeconds.

    • Word count: 1298

  2. Biodiesel Investigation - How the concentration of Potassium Hydroxide solution would affect the yield of biodiesel when transesterified with a standard sample of vegetable oil .

    I do feel as though this is an important experiment to engage in as scientists find biodiesels an extremely useful substance to use in machines and such. To try an experiment which involves looking at factors that can change the output of the product, would be a stepping stone to building a stronger understanding on the substance itself and how more of it can be obtained and perhaps what benefits it may serve. The experiment conducted was intent on looking at a certain independent variable (the concentration)

    • Word count: 3179
2 essays
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Whilst Chemistry is a universal science, studying it at IB is quite different from other courses. The most distinctive difference is that it has considerably more breadth in the coverage of topics. The 11 topic core include: Quantitative Chemistry, Atomic Structure, Periodicity, Bonding, Energetics, Kinetics and Organic Chemistry.

The seven optional topics include modern analytical chemistry, human biochemistry, medicines and drugs, food chemistry, chemistry in industry and society, further organic chemistry and environmental chemistry. You'll be expected to become adept at practical laboratory work, data collection and manipulation, and build a strong scientific awareness. External assessment consists of three written papers, which you may find easier to face having accessed the Marked by Teachers collection of IB Chemistry essays. Internal assessment, which makes up 24% of the marks, consists of an interdisciplinary project, a variety of short and long-term practical investigations and some subject-specific projects.

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