Jessica Zebracki Organic Chem II Lab 2/15/15 Friedel-Crafts Acylation of Ferrocene and Column Chromatography Introduction: The intention of this lab is to analyze the formation of acetylferrocene using column chromatography. The Friedel-Crafts acylation reaction created acetylferrocene and diacetylferrocene‚ using phosphoric acid as a catalyst for the reaction between acetic anhydride and ferrocene (once applying heat). During column chromatography‚ a solution is passed through a filtration system
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Introduction TCO or Total cost of ownership is the total amount of target costs‚ which the owner has to bear with the launch of the entry into the state ownership to the release of state ownership and execution of the full owner of the obligations of ownership. There is no universal method that will allow determining total cost of ownership‚ since it is dependable on the characteristics of the object of ownership tenure‚ cost structure and functions‚ which can vary greatly. To determine TCO a number
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Use Word’s Replace to transpose a column of names Available from:http://blogs.techrepublic.com.com/msoffice/?p=4156 Date: November 22nd‚ 2010 Author: Susan Harkins Category: Microsoft Word You’ll often see a column of names entered in a Word document either as a list or part of a table. Listing the names is no problem‚ but changing their order after they’re entered could be. For instance‚ let’s say your document contains a list of names entered in firstname lastname format‚ but you want them
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‘A squirrel dying in front of your house may be more relevant to your interests right now than people dying in Africa.’ * Mark Zuckerberg‚ Facebook Founder. The phenomenon of the personalization of the internet is all around us. Sites such as Google‚ Facebook and Yahoo are adapting their results for each individual. This is a major step forward and we’ve only just come across it. For example‚ let’s take Google. When you type your required search in the toolbar‚ Google gives you the links
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The Benfield Column Repair Project: Project definition: Overhaul the damaged carbonate regeneration column of the Benfield Unit of the Gas Circuit at Sasol within the shortest possible time to prevent any further loss of income. Project scope: The PMBOK framework is applied for this case. It covers the design‚ execution and evaluation phase. The case does not give any details pertaining to the finishing phase. Also no details are given about the environmental and managerial aspects of the phases
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Column and Thin Layer Chromatography: The Separation of Spinach Pigment Abstract Spinach extract was separated into fractions containing compounds of similar polarity by column chromatography. Based on solid-liquid phase partitioning‚ this separation technique exploited the different polarity of the compounds in the spinach extract. Three fractions with different colors were obtained. The extract and its fractions were analyzed using thin layer chromatography (TLC). The TLC results showed that
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Why do people call the cops “pigs” in the form of an insult? “Taken up by protestors‚ the term ‘pig’ had been used early as the mid-1500s to refer to a person who is heartily disliked.” A staff member of Straight Dope Science Advisory answers this question stating that the name runs back to the early police force‚ Bow Street Runner. The characters that pigs or snakes typically symbolizes are considered human’s unacceptable behavior. Pigs are often depicted as a character who’s unclean‚ greedy‚ and
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The premises of "Trump immigration policies disrupt health care: Column." is the constant lack of physician shortage that the United States has faced. This is not just a current problem‚ getting trained physicians to help in poor urban areas has been a problem for decades. Preisedent Trump’s new travel ban has blocked thousands of Visa holders from entering the country or causing a delay upon their arrival. Foreign doctors have helped in rural urban areas because they came to the US to recieved other
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Maksin Organic Chemistry Laboratory 1 Column and Thin Layer Chromatography: The Separation of Spinach Pigments Russ Hoburg 02/15/2012 Abstract The main goal in doing the column and thin layer chromatography was to separate spinach extract into its components based on polarity and then to analyze the components. The separation of the spinach extract was done using the column chromatography with the wet/slurry packing method. Alumina was inserted into the column to act as the stationary phase. After
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curvature in the neck‚ upper trunk and lower trunk is normal. Humans need these spinal curves to help the upper body maintain proper balance and alignment over the pelvis. However‚ when there are abnormal side-to-side (lateral) curves in the spinal column‚ we refer to this as scoliosis. Scoliosis occurs most often during the growth spurt just before puberty. While scoliosis can be caused by conditions such as cerebral palsy and muscular dystrophy‚ the cause of most scoliosis is unknown. Scoliosis
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