CHEM 2204 Chromatography Lab by wyk.wong » Fri Jul 11‚ 2014 10:25 am Results and Calculations Rf values Rf=(Distance moved by the spot (cm))/(Distance moved by the solvent front (cm)) Toluene: Rf=2 cm/3.8 cm=0.53 (Fluorenone) Rf=1.1 cm/3.8 cm=0.29 (Fluorene) Hexane: Rf=1.8 cm/2.2 cm=0.82 (Fluorene) Rf=0 cm/2.2 cm=0 (Fluorene Table 1: Experimental IR peaks compared to literature IR peaks for fluorenone Functional group Experimental peak (cm-1) Literature peak (cm-1) C-H 3010.5 3013
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Introductions and Conclusions Introductions and conclusions play a special role in the academic essay‚ and they frequently demand much of your attention as a writer. A good introduction should identify your topic‚ provide essential context‚ and indicate your particular focus in the essay. It also needs to engage your readers’ interest. A strong conclusion will provide a sense of closure to the essay while again placing your concepts in a somewhat wider context. It will also‚ in some instances
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well written. What kind of conclusion does the writer use? The conclusion was very well written. I think his intentions were to leave you wondering‚ because it left me wondering. What is the effect of that kind of conclusion on this essay? He knew exactly what and how he wanted to write. The simple question from the beginning just attracts your attention. Very well written and powerful essay‚ this is just a very touching essay he wrote this from experience. Conclusion Essay What article did
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Conclusion ACUVUE® is view as a good quality and good looking product which is suitable for everyone with or without sightedness problem‚ concluded by the survey conducted. This is because almost all of the users will recommended this product to others after they have consumed. The price‚ comfortability‚ and degree of moistness of the ACUVUE® contact lenses are the important factors that mostly affected the purchase decision of the consumers. Although most of the consumers are more prefer Freshlook
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As the conclusion‚ the university students nowadays prefer to improve their vocabulary skill through smartphones rather than other devices especially in this era. This because through the smartphones they can easily download application such as dictionary besides can work the vocxabulary lesson through offline or outside the class. At the same time‚ these can make students’ life more flexible to improve their vocabulary at anywhere and anytime they want it without sticking at one place to learn it
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Conclusion and Recommendations Introduction This is the final chapter of this research with an objective to conclude the thought i.e. IT competencies and capabilities development in an organisation aimed to support critical competitive advantage functions and activities‚ particularly the knowledge creation/ management and utilising such knowledge in decision making to improve overall performance of the organisation. It can be concluded as a general statement from the whole discussion that these
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It was concluded that the product created was paracetamol when a thin layer chromatography test was performed and observed under ultraviolet light (which is discussed further down the page). An unknown substance was treated with acetic anhydrate and resulted with paracetamol. A compound that behaves in this matter is 4-aminophenol and is widespread in the industrial production of this drug. Upon these observations was the build up of “Chemical A” decided. When 4-aminophenol is t treated with
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Standing over fifty-eight feet high is the Marble Column from the Temple of Artemis at Sardis‚ known as one of the seven wonders of the world. The marble column that stands tall at the Metropolitan Museum of Art is different from the rest found at the site of the temple because the capital is slightly smaller than the rest. This indicates that it did not belong to the outer colonnade. The columns at the Temple of Artemis are found to be ionic orders‚ being one of the three different types of orders
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Conclusions: We learned that some nasty stains can come out with some unorthodox products. We used on our stain Isopropyl alcohol (rubbing alcohol)‚ bleach‚ and shout. The product that did the best at pulling out stains was the Isopropyl alcohol. Isopropyl alcohol is a clear‚ colorless‚ flammable‚ mobile liquid‚ (CH3)2CHOH‚ used in antifreeze compounds‚ in lotions and cosmetics‚ and as a solvent for gums‚ shellac‚ and essential oils. It did great job at pulling stains right out of the cloth. This
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General Conclusion: These experiments helped us understand the importance of molecular polarity. This knowledge can now be used for the future to predict‚ for example‚ if two substances will mix or not. We can now do this by knowing that polar substances only mix with other polar substances‚ while non-polar substances only mix with other non-polar substances. This concept can be used to predict if a substance will be soluble in a specific solvent. The concepts of solubility and conductivity of a
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