The characteristic properties of slime can be explained by polymerisation reactions. Polymers can be explained most simply by the polymerisation of the molecule ethylene into polyethylene (see figure 1 below). Figure 1. Polymerisation of polyethylene from ethylene. In this example‚ the double bond between the carbon atoms is broken‚ allowing each carbon atom to form one more bond between another molecule. The double bond between the carbon atoms is weaker because the type of orbital is ‚ compared
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Myristic acid (tetradecanoic acid) NATURE/MECHANISM OF REACTION: The temperature range should be between 56-57 °C. The organic solvents that were used in the experiment were diethyl ether‚ methylene chloride and ethyl acetate. It is advised to know that when ethyl acetate and water are mixed‚ the water will eventually separate into two distinct phases. Theoretical Yield‚ Percent Yield and Discussion: The weight of the product is determined to be 0.78g The weight of the mixture is
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tested either with lead acetate or sodium nitroprusside. The presence of nitrogen was tested with ferrous ammonium sulfate and potassium fluoride. The presence of any halogen was tested by a flame test with copper wire and the identification of the exact halogen was done using silver nitrate. Careful experimentation was needed in order to avoid false positive and false negative results. Keywords: elemental analysis‚ oxygen‚ sulfur‚ nitrogen‚ halogens‚ sodium fusion‚ lead acetate‚ sodium nitroprusside
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Introduction The purpose of this lab was to explore the properties of an unknown compound. An unknown was given and a cation flame test and anion test was performed to determine the identity of the compound. Once the identity was determined‚ the properties were explored. Experimental To determine the cation of the compound‚ a cation flame test was performed. A bunsen burner was lit until a medium blue flame was burning. The given unknown was scooped onto a nichrome wire loop. The wire was held
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acetic acid joins with the hydroxyl group of the isopently alcohol‚ catalyzed by the presence of sulfuric acid‚ through a dehydration reaction‚ in which water is removed. This allows for an ester bond to form in the second carbon of the isopentyl acetate (banana oil). Esterification of the acetic acid with isopentyl alcohol is the reaction‚ which prepared the banana oil . The ultimate goal of this experiment to synthesize the artificial flavoring This experiment will performed into several important
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silk substitute‚ and used for products ranging from women’s stockings to tooth brushes and military parachutes. The variety of synthetic fibres used in manufacturing fibre grew steadily throughout the 20th century. In the 1920s‚ acetate was invented; in the 1940s‚ acetate‚ modacrylic‚ metal fibres‚ and saran were developed; acrylic‚ polyester‚ and spandex were introduced in the 1950s. Polyester became hugely popular in the apparel market‚ and by the late 1970s‚ more polyester was sold in the United
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INTRODUCTION The ever increasing population in the world today has led to the mounting of sewage‚ refuse and industrial waste everywhere. This waste has no place where it could be discarded and now it has found its way into the water bodies polluting the water and thereby creating a threat to the marine flora and fauna. In the environment‚ organisms are usually exposed not just to a single pollutant but rather to a mixture of these chemicals. Mumbai is one of the busiest metropolitans in the country
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REPORT EXPERIMENT 9 CARBOXYLIC ACID AND DERIVATIVES Date: January 19‚ 2004 Objectives: 1. To understand the reactions of carboxylic compounds and derivatives. 2. To know the methods for preparing carboxylic acid derivatives. 3. To know the methods for testing the carboxylic acid derivatives. Experimental Procedures: 9.1 Solubility 1. Prepare 3 test tubes with 3 ml of water in each. 2. Place 3 drops of acetic acid‚ benzoic acid‚ and oxalic acid in separate test tubes. 3. Shake and observe
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______________________________________________________________________ 8. Draw a diagram of a water molecule showing the polarity. 9. The process of an ionic solid breaking down into individual ions is called 10. Given a saturated solution of sodium acetate‚ outline the procedure you
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Sulfate-reducing bacteria like Thermodesulfobacteria fall into more than 20 separate genera and can be classified by the types of substrates that they use. They are divided by their ability to use acetate as a source for electrons. Thermodesulfobacteria are in Group 2 of sulfate reducing bacteria because it can use acetate and some fatty acids. Thermosulfobacteria are also important in aerobic environments if they can rapidly reproduce in anaerobic environments. For example‚ in marine sediments
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