Methane is a chemical compound with the chemical formula CH4. It is the simplest alkane‚ and the principal component of natural gas. Methane’s bond angles are 109.5 degrees. Burning methane in the presence of oxygen produces carbon dioxide and water. The relative abundance of methane makes it an attractive fuel. However‚ because it is a gas at normal temperature and pressure‚ methane is difficult to transport from its source. It is generally transported in bulk by pipeline in its natural gas form
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Task 3: The chemical tests used in order to carry out and collect these results are useful for the simple identification of colourless organic liquids and ones that are often found at the scenes of crime. The first test carried out was the Lucas test which was used to identify a variety of alcohols following the contribution of a given solution‚ from carrying this out I could then identify that primary and secondary alcohols were present with one tertiary alcohol also being present however despite
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Dehydration of Cyclohexanol Introduction In this experiment cyclohexene‚ an alkene‚ was prepared by the dehydration of cyclohexanol‚ an alcohol‚ using phosphoric acid‚ an acid catalyst. The reaction is as follows: [pic] The dehydration of cyclohexanol was performed in a simple distillation apparatus. As cyclohexene formed‚ it was distilled out of the mixture. Background Dehydration is an elimination reaction of an alcohol that takes place in the presence of an acid catalyst
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Introduction: For this lab‚ the main focused involved alkanes and hydrocarbons. Essentially‚ the free-radical chain of chlorination of 1-Chlorobutne. Free radical-chains occur because alkanes are chemically unreactive with most agents. However‚ the free-radical chain allows a pathway of certain functional groups like alkyl chloride or bromides. In addition‚ chlorine atoms can possibly be made from molecular chlorine under low to mild conditions with the usage of a catalytic amount of an initiator
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Oxidation of an Alcohol: Oxidizing Methoxybenzyl Alcohol to Methoxybenzaldehyde Using Phase-Transfer Catalysis PURPOSE OF THE EXPERIMENT Oxidize methoxybenzyl alcohol to methoxybenzaldehyde‚ using sodium hypochlorite as the oxidizing agent and tetrabutylammonium hydrogen sulfate as the phase-transfer catalyst. Monitor the progress of the reaction by thin-layer chromatography. BACKGROUND REQUIRED You should be familiar with extraction‚ evaporation‚ and thin-layer chromatography techniques
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1691 Strong 4. The reaction of the unknown with bromine gave a negative result meaning the solution did not turn clear‚ but rather‚ maintained an orangish brown color. This is interpreted to mean that bromine in not adding to either side of an alkene bond‚ so there is no C=C bond in the unknown compound. The reaction of the dicarboxylic acid with bromine gave a positive result meaning that the solution turned clear as a result of bromine adding to both sided of the C=C bond. The dicarboxylic
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Preparing Isopentyl Acetate by the Fischer Esterification Preparing Isopentyl Acetate by the Fischer Esterification Leah Monroe May 8‚ 2003 Organic Chemistry Lab II Experiment performed on April 29 and May 1‚ 2003 Abstract: The purpose of this experiment was to synthesize isopentyl acetate via an esterification reaction between acetic acid and isopentyl alcohol‚ using concentrated sulfuric acid as a catalyst. The product was washed with sodium hydrogen carbonate‚ as well as with water
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and aromatic hydrogens and were used to verify the identity of the product. In addition‚ the melting point of the crystals was also used to verify the synthesis of 1‚2-dibromo-1‚2-diphenylethane. Introduction Bromination of an alkene is an example of an addition reaction in which bromine adds across the double bond to form a vicinal dibromide as shown in Figure 1. [pic] Figure 1: The bromination of trans-stilbene In this experiment‚ 1‚2-dibromo-1‚2-diphenylethane is synthesized
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presence of an aromatic ring‚ alkene group and carbonyl group. CNMR showed the presence of an aromatic ring‚ carbonyl group and a methyl group. HNMR showed the presence of an aromatic ring‚ alkene group and carbonyl. Using the rule of 13 and the adjustment for oxygen‚ the predicted structure of the anise oil was C10H12O with 5 degrees of unsaturation. Since the aromatic ring is 4 degrees of unsaturation by itself‚ the last degree of unsaturation was most likely an alkene
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The percent yield of the isopentyl acetate was 74.3% and this low percent yield could have occurred due to some amount of gas escaping from reflux apparatus’ top or apparatus was not fully closed so that some of the heat escaped and did not proceed the reaction well‚ leaving reagents. Another source of error could be that some of the organic layer could have been transferred along with the aqueous layer when the aqueous layer was getting separated from the organic layer by a pipette. One of the
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