Principles and Applications of Science I
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BTEC National Extended Diploma in Applied Science: Principles and Applications of Science 1 (Unit 2) 1-4 Assignments
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---4December 2024
- The summarised assignments, all of which achieved Distinction grades, showcased exceptional understanding, precision, and analytical skills across various practical experiments: Titration, Colourimetry, Chromatography and Ethyl Ethanoate Synthesis.
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Making a Nail Varnish Remover: Ethyl Ethanoate: Principles and Applications of Science I
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---16December 20242022/2023A+
- This assignment, which earned a Distinction Star grade, demonstrated excellent comprehension of esterification and exceptional practical skills. The student synthesized ethyl ethanoate through the reaction of ethanol with ethanoic acid, using concentrated sulfuric acid as a catalyst. They provided a detailed account of the procedure, including the setup of the reflux apparatus, separation of the ester using a separating funnel, and purification steps. The report included accurate yield calculati...
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Colourimetry Assignment: Unit 2 Assignment 2: Principles and Applications of Science I
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---4December 20242022/2023A+
- The assignment demonstrated exceptional understanding and application of colorimetric techniques. The student accurately determined the concentration of an unknown copper(II) sulfate solution by creating a precise calibration curve using a series of standard solutions. They effectively applied the Beer-Lambert Law and validated its linearity with high-quality data. The report included detailed observations, clear graphical representation of the calibration curve, and accurate extrapolation of th...
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nadiyah_islam137
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Unit 2 Assignment 2: Chromatography
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---14December 20242022/2023A+
- The assignment achieved a Distinction Star grade by showcasing a thorough understanding of chromatography principles and excellent analytical skills. The student successfully separated and identified the components of a mixture using thin-layer chromatography (TLC). They accurately calculated Rf values for each component and compared these to reference values for identification. The report included a clear explanation of the methodology, detailed observations, and well-documented results. A thou...
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Unit 2 Assignment 2: Colourimetry
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---13December 20242022/2023A+
- Summary of Colorimetry Assignment 
The assignment demonstrated exceptional understanding and application of colorimetric techniques. The student accurately determined the concentration of an unknown copper(II) sulfate solution by creating a precise calibration curve using a series of standard solutions. The report included detailed observations, clear graphical representation of the calibration curve, and accurate extrapolation of the unknown solution's concentration. The analysis also discus...
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nadiyah_islam137
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Chemistry Unit 2 Assignment 1: Titration
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---9December 20242022/2023A+
- The assignment achieved a Distinction Star grade due to its clear presentation, accurate data analysis, and insightful conclusions. The student determined the concentration of an unknown hydrochloric acid solution using sodium hydroxide as the titrant, achieving precise and consistent results across trials. A detailed analysis of the data demonstrated strong mathematical accuracy and a deep understanding of stoichiometric principles. The assignment also included an effective discussion of source...
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