Task 3: How could Thin Layer Chromatography (TLC) have been used to prepare a pure sample of aspirin? The method of using thin layer chromatography is easy‚ quick and relatively cheap to carry out this makes it ideal for preparing pure samples of aspirin. Equipment Required: • Thin Layer Chromatography Paper • Ruler • Pencil • Solvent • Beaker • Micro Capillary • Access to a fume cupboard • UV light • Clingfilm • Individuals sample of aspirin • Pure sample of aspirin • Sample of salicylic acid Method:
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Lab #3: Ion Exchange Chromatography Objective The purpose of this experiment was to separate proteins on the basis of their net charge at a particular pH. In cation exchange chromatography positively charged molecules are attracted to a negatively charged column. Conversely‚ in anion exchange chromatography‚ negatively charged molecules are attracted to a positively charged column. Experimental results could be monitored in a predictable way by controlling running pH‚ salt concentration‚ and by
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Tennessee Williams depicts a young man who was falling in love with the same sex individuals. The protagonist had to choose between a socially accepted life of a desperate man and a life of accepting herself with constant disdain from the general public. Candy Delaney‚ a protagonist‚ was a member of LGBT community decided to accept herself. Williams stated that each individual decided what was more important social norms or own desire. Author depicted
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The Twix: a candy bar that has been giving consumers a delectable crunch since 1967 (although under various names). Many people alive today grew up with the candy. As a result‚ the marketing techniques used in Twix commercials have changed in numerous ways so they could better appeal to the American people. Recently‚ Twix has released an ad campaign‚ called the “Left Twix Versus Right Twix Pick a Side” campaign‚ which features a rivalry between the two creators of Twix‚ who split the company to
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Solubility as a Property of Matter A Lab of Chemicals‚ Chromatography‚ and Crime! Chemistry is a natural science that deals with the composition of matter and the changes it undergoes. At crime scenes‚ investigators often find unknown materials that need to be identified. If an unknown material is a mixture‚ an investigator may want to know one or two things about it: What are the ingredients of the mixture? Is the mixture found at the scene the same as a known mixture? A mixture is a collection
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Making Candy By. RJ Merna In the Article “The Sweet Science Of Candy Making” by Tom Husband‚ the article explains how different types of candy are made‚ such as chewy (fudge)‚ gritty (cotton candy)‚ or hard (glass candy). You can make fudge by continuously stirring the sugar syrup after a period of cooling‚ so when the sugar crystals form‚ they stay very small and do not grow that to be big. You can make cotton candy or glass by cooling the syrup quickly to keep the crystals from forming. The
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in the BIOL 1F90 Laboratory Manual (Martin‚ 2013)‚ Experiment # 1‚ pages 2-5. Results: Table 1: Culture Sample Chromatography Rf Values Sample of Spot Distance from Origin (mm) Solvent Front (mm) Rf Value Color A 6.0 57.0 0.22 Bluish green B 17.5 56.0 0.105 Dark green blue C 4.0 57.0 0.070 Greenish blue D 4.0 47.0 0.085 Green E 10.5 56.5 0.186 Light blue Figure 1: Chromatography- TLC sheet From left to right- acetic acid‚ citric acid‚
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Administration Marketing Marketing Case Analysis van der Steen Candy Company I. Identification and Explanation of Underlying Problems and/or Issues a) Issues: Running a business‚ like that of van der Steen Candy Company is never a particularly easy task‚ especially when there are external macroenvironmental factors that become issues that impact the success of the company. For instance‚ the fact that van der Steen Candy Company was selling candies to a select group of customers is significant to note
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“How Candy Conquered America” by Lauren Tarshis ‚and‚ “This Cupcake is trying to hurt you” by Kristen Lewis‚ are both about candy and sugar. However‚ they are both different in how the topic is laid out. The first article “How Candy Conquered America” is about the history of candy. The second article “This Cupcake is trying to hurt you” is about the side affects of too much candy and sugar. “How Candy Conquered America” is about the history of candy. First off it says “how”in the title which means
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Business Reports Business Studies HSC The Business Report Structure There are 2 options for addressing your answer in the body of the report I suggest you use Option 1 in case you run out of time! How to start the Business report before you start writing it! 1 Re read stimulus 2 Underline the key words 3 Determine if the stimulus is drawing upon concepts covered in one or two of the syllabus topics i.e Nature of business‚ Business Management‚ Business Planning 4 Annotate the directive verbs e
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