In the formation of barium white‚ the reaction involved was a double displacement reaction in which sodium in sodium sulfate being more reactive‚ was replaced by barium from barium chloride and was able to form barium sulfate‚ a white solid pigment and sodium chloride 2. As barium sulfate is insoluble in water it was relatively easy to observe and interpret what was happening as the chemicals mixed 2. The formation of
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Melting (°C) Totally Melted (°C) Range (°C) Pure Aspirin 136 1-2 Crude Aspirin 125 130 5 Product from Willow Bark 120 125 5 The documented melting point for pure aspirin is 136°C. An impure compound will exhibit a lower melting point than this‚ which is what was observed in both the willow bark product and the crude aspirin. Pure aspirin has a narrow temperature range during which it changes from a solid to a liquid; this range is less than 2°C. The sharpness of the melting point is useful to
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Objective: The benefit of this lab was to acquaint oneself with the fundamentals of the Aldol Condensation reaction by demonstrating the synthesis of dibenzalacetone (trans‚ trans-1‚5-Diphenyl-1‚4-pentadien-3-one) through the aldol condensation of acetone with benzaldehyde. The synthesis began by using a strong base to generate the acetone enolate ion. The ketone/enol tautomerization is an equilibrium process that produces little of the enol (ppm or less). However‚ any enol that formed quickly reacted
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Synthesis As a representation of the culture of the time period‚ art enables its audience a sense of history and recollection. The pieces of work are timeless‚ precious‚ and irreplaceable‚ for they hold a significance that amazes all. Therefore‚ a museum that houses a collection of artifacts have employees who bear the responsibility of accurately securing and displaying works of arts or artifacts. When doing so‚ it is imperative for the these group of people who have the weight of the artifact’s
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Period 6 March 21‚ 2012 Synthesis Essay Conformity versus individualism is a topic that has been discussed in literature throughout the years. When people are forced to conform to society‚ they are expected to act appropriately toward society’s vision. When people stand out from the crowd‚ they create an imbalance in culture. This is why individualism is condemned in most works of literature‚ but people still attempt to defy society’s vision and make a difference. This topic is discussed
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Synthesis Essay Prompt #1 Throughout history‚ primary sources such as diaries‚ postcards‚ and letters have all been utilized to their full extent. These were used to document events in the past‚ to which the present can achieve a better understanding of. However‚ some texts have more influence over another‚ to which the ineffectual documents are discarded. Historical texts such as the Declaration of Independence‚ or the Holy Bible are all preserved because of their role in fabricating today’s society
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Argument Synthesis An advertisement is a form of communication to the public promoting a certain product with the intention of drawing attention to the good. Marketers use advertisements to display their goods in numerous ways to appeal to their target audiences. Through the use of different sizes of text or pictures‚ marketers can produce either a positive or negative effect outcome on their audience. In addition to promoting their products‚ advertisements also reflect the values and beliefs
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Informative Synthesis Fairy tales play a big role in society whether we realize it or not. They have been told by parents to their children for many generations. Everyone has been introduced to fairy tales whether it’s on TV‚ from a children’s book‚ told by someone else‚ we have all heard a fairy tale. Most of the time fairy tales are being told without thinking what they are about. Fairy tales have effect on people even if they do not know it‚ and four fairy tale analyzers have written articles
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aMicroscale Synthesis of Isopentyl Acetate (Banana Oil) Objective: Carried out the microscale synthesis of isopentyl acetate by direct esterification of acetic acid and isopentyl alcohol. This was an acid catalyzed Fischer esterification. Both extraction and distillation were employed to obtain a pure product. IR spectroscopy and gas chromatography were used to determine purity of the final product. Reagents: * Compound: | * MW (g/mol): | * MP (°C): | * BP (°C): | * Density (g/mL):
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The Cyclohexanol Cycle and Nylon Synthesis Samantha Stuckey CHE 233L Section 302 Department of Chemistry‚ DePaul University‚ 1110 W. Belden Avenue‚ Chicago‚ IL 60614 smstuckey@comcast.net May 8th‚ 2013 Abstract The first three labs of this organic chemistry experiment involved carrying out the first three parts of the Cyclohexanol Cycle. The cyclohexanol was first converted to cyclohexene and water by simple distillation (product: 6.5395g‚ 79.75% recovery). The cyclohexene then underwent a bromination
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