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Coordinated science (double award) C1 notes
Notes aligned to Cambridge IGCSE syllabus points
£0.55 Preview RemoveCHM 2354 Aspirin Lab analytical chemistry
The purpose of this experiment was to determine the amount of acetylsalicylic acid contained in an aspirin tablet as a percent-weight concentration. To do this we titrated two acetyl salicylate solutions (one solution made using dissolved aspirin tablets in NaOH and the other using aspirin powder dissolved in NaOH) with standardized HCl. Using the data collected during these titrations, it can be calculated that each tablet contains approximately 80% acetylsalicylic acid. Determining that each tablet contains a high concentration of acetylsalicylic acid is important because the main beneficial properties of aspirin are caused by the presence of acetylsalicylic acid.
£12.50 Preview RemoveFuels -Introduction
General Aspects of Fuel: Organic fuels, Origin, classification and general aspects of fossil fuels. Solid fuels, Coal, carbonization of coal, manufacturing of coke by Beehive oven and by product oven method. Liquid fuels, Composition of petroleum, advantages and refining of petroleum. Cracking, reforming, polymerization and isomerization of refinery products. Synthetic petrol, Bergius and Fischer Tropsch process. Knocking, octane number and anti-knocking agents. Gaseous fuels, Advantages, manufacturing, composition and calorific value of coal, gas and oil gas.
£3.75 Preview RemoveCalcium-based Biominerals in Ascidians and Molluscs
Course name: Bio-inorganic Chemistry Course level: 4000 (4th year undergraduate module) 4th year research essay which explains about the biominerals present in Ascidians and Molluscs - specifically calcium carbonate, which are present in 6 different structures: calcite, aragonite, vaterite, calcium carbonate monohydrate, calcium carbonate hexahydrate, and amorphous calcium carbonate. I also wrote more on the introduction to deepen other's understanding on what ascidians, molluscs, biominerals and calcium based biominerals actually are.
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