"Preparation and characterization of alkene" Essays and Research Papers

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    Muhammed Sabah Comparing Reactivity Of Alkanes and Alkenes Aim: To compare the reactivity of an alkane and an alkene Hypothesis: The cyclohexene would react to the bromine water and turn colourless‚ whilst the cyclohexane won’t react. Risk Assessment: What’s the problem? | How do you fix? | How does it work? | Bromine water is corrosive to the skin | Wear gloves | Stops the Bromine water from reaching skin | Cyclohexane/ene is highly flammable | Keep away from naked flames. | No naked

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    Preparation Of Triphenylmethanol Objectives 1. To study the preparation of triphenylmethanol using through Gridnard reaction 2. To study the operations of anhydrous reaction‚ water vapor distillation. Principles Alcohol is widely used in organic chemistry‚ not only as solute but also as intermediate to synthesize halide‚ alkene‚ ether‚ aldehyde and ketone etc. In laboratory‚ an important method of synthesizing alcohol is though the addition reaction of Gridnard reagent and carbonyl compound‚ whereas

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    SYNT 0719 – Brominating Alkenes OBJECTIVE The purpose of this lab will be to brominate trans-stilbene by using acetic acid and pyrimidium tribromide by refluxing the mixture. To test the purity of product I will take the melting point which should be around 240 ºC along with a flame test which should be green-blue. CHEMICAL PROPERTIES TABLE See Attached Lab Notebook Copies REACTION MECHANISM In this lab we used multiple techniques to complete and verify the bromination of trans-stilbene

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    b. Characterization of Aspirin B. Set – up Fig. 11.1. Suction Filtration Set – up C. Table 11.1 List of Necessary Chemicals Sample Structure Purpose Physical Properties Hazards Salicylic Acid Starting Material Appearance: white powder Molar Mass: 138.12 g/mol Melting Point: 1590C Boiling Point: 2110C Density: 1.44 g/cm3 Mildly irritating (pulmonary irritants). Harmful by inhalation‚ ingestion and through skin absorption. Acetic Anhydride

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    2012) In the first step‚ the mixture of water‚ concentrated sulphuric acid‚ and cyclohexene was shaken vigorously until it became a homogenous solution. Followed by‚ the addition of water‚ and the distillation process lead to the hydrolysis of the alkene. Finally‚ addition of diethyl ether to the mixture then distillation took place to be purified and to obtain the final product‚ cyclohexanol (McFadden‚ 2012). Diethyl ether was used to extract alcohol from salt-water mixture because diethyl ethers

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    Materials 2011‚ 4‚ 845-856; doi:10.3390/ma4040845 OPEN ACCESS Article ISSN 1996-1944 www.mdpi.com/journal/materials materials PreparationCharacterization and Performance of Templated Silica Membranes in Non-Osmotic Desalination Bradley P. Ladewig 1‚2‚3‚ Ying Han Tan 4‚ Chun Xiang C. Lin 4‚ Katharina Ladewig 2‚3‚ João C. Diniz da Costa4 and Simon Smart 4‚* 1 2 3 4 Department of Chemical Engineering‚ Faculty of Engineering‚ Monash University‚ VIC 3800‚ Australia; E-Mail:

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    Characterization is the process by which the author brings a character to life. Sir Arthur Conan Doyle uses exceptional characterization throughout the novel The Hound of the Baskervilles. There are four methods of characterization which can be revealed through direct characterization and indirect characterization. The most common method of characterization is the narrator’s direct description of a character. This is a very important method as it enables the reader to have a vivid picture in their

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    Importance of Characterization How can introducing characters to the reader play an essential role in the story? There’s no doubt that the characters are important in fiction because the make events happen‚ so the way of introduce them to the reader surely makes a difference. Besides that‚ characters can be introduced to the reader not only by direct statements but also by what they do‚ say or think‚ by how other characters see them‚ by their names‚ by their appearance and also through dialogues

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    Characterization of Grandma In the story “A Visit to Grandmother” by William Melvin Kelley‚ the grandma was given many characterizations based on her appearance‚ words‚ actions‚ and by what people say about her. All the characterization of Grandma told the readers a lot about her and made it easy for the reader to understand the story from grandma’s perspective. First off‚ in the story the author describes Grandma as a lucky and unique person by providing the reader with some text evidence. The

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    Practical 2 Reaction of alkane‚ alkene & alkyne Title: Reaction of Saturated and Unsaturated Hydrocarbons Objective: To carry out chemical test to differentiate an alkane and an alkene. Apparatus: dropper‚ test tube‚ hot plate Chemical reagents: bromine‚ toluene‚ cyclohexane‚ cyclohexene‚ acidified KMnO4‚ dichloromethane Method A. Bromine test 1.6 clean and dry test tube were taken and were labelled them A until F 2.1ml of dichloromethane were placed into each test tube 3.1 ml of

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