molecules can be saturated or unsaturated and acyclic‚ cyclic‚ or aromatic. In this experiment we used a variety of methods to examine the physical and chemical properties of hydrocarbons. The first experiment we tested a variety of solvents to see if they dissolved our alkane (Decalin). One would expect that non-polar solvents will dissolve alkanes because they are non polar as well 1. If the solvent did not dissolve in the alkane we heated the solution with a heat gun‚ because higher temperature
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molecules can be saturated or unsaturated and acyclic‚ cyclic‚ or aromatic. In this experiment we used a variety of methods to examine the physical and chemical properties of hydrocarbons. The first experiment we tested a variety of solvents to see if they dissolved our alkane (Decalin). One would expect that non-polar solvents will dissolve alkanes because they are non polar as well 1. If the solvent did not dissolve in the alkane we heated the solution with a heat gun‚ because higher temperature
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which more than one pair of electrons are shared between two carbon atoms. Based on the nature of the carbon chain they are grouped as‚ * Chain form * Branched form * Ring form Alkane‚ Alkene and Alkyne…….. Alkane: Saturated hydrocarbons. Represented by a general form >> CnH2n+2 Alkenes: Unsaturated hydrocarbons. Double bond between two carbon atoms. Represented
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The percent yield of meso-1‚2-dibromo-1‚2-diphenylethane was calculated to be 66.36% and with a melting point of 235.1°C. Therefore‚ it can be concluded that this experiment was successfully conducted as the percent yield obtained is only 33.64% off from the equilibrium point‚ and because the melting point met the literature value. The percent yield for the product was less than 100%‚ indicating that were experimental errors‚ such as an undesirable side reaction‚ or more likely‚ an incomplete reaction
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this peak represents an aromatic ring being present in the molecule due to an aromatic ring’s literature value ranging from 1600-1475 cm^(-1). N‚N-diethyl-toluamide’s literature IR spectrum has a peak at approximately 1475 cm^(-1)‚ therefore‚ representing an aromatic ring (Webbook.nist). Table 2 also exemplifies a peak was present at 2943 and 2970 cm^(-1). Alkanes have a literature range ranging from 3000-2800 cm^(-1)‚ therefore‚ these two peaks are representing alkanes present in the molecule.
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SYLLABUS – ADVANCED PLACEMENT CHEMISTRY Required Texts 1. Chemistry: The Central Science by Brown‚ LeMay and Bursten‚ 10th ed.‚ Pearson Education. Inc.‚ Upper Saddle River‚ NJ‚ 2006‚ ISBN: 0131464892 Includes: Text book‚ Laboratory Manual‚ Student Study Guide‚ AP Test Prep Series‚ Solutions to Practice Problems 2. Barrons AP Chemistry‚ Jespersen‚ Neil D‚ 4th ed.‚ Barron’s Educational Series‚ Inc‚ 250 Wireless Boulevard‚ Hauppauge‚ New York 11788
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Title : Properties of hydrocarbon Objective : 1) To study the properties of hydrocarbons. 2) To determine the unknown samples. Results : Part A : Combustion Compounds Observations Hexane There was orange flame and burned mildly during the burning process. No soots and smoke were produced. C6H14 + 19/2 O2 6CO2 + 7H2O Cyclohexene Orange flame burned vigorously. A small amount of black soot and smoke were produced during the burning process.
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IntroductionA dehydration reaction of an alcohol results in an alkene. This type of reaction requires an alcohol‚ an acid catalyst and heat. Generally strong concentrated acids‚ like sulfuric acid and phosphoric acid‚ are used as the acid catalyst.The acid catalyst protonates the alcohol‚ to make a much better leaving group. Weakest bases make the best leaving groups‚ so once the alcohol is protonated the leaving group leaves and produces in a carbocation and water. In order to form the double bond
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solvent was removed in vacuo. The white solid was washed with DCM to afford the title compound as white solid. Yield (0.55 g‚ 96 %). δH (300 MHz‚ CD3OD) 2.57 (1 H‚ br s‚ alkyne CH)‚ 3.01 (1 H‚ br s‚ OCH2)‚ 7.18 - 7.33 (1 H‚ m‚ 5-CH)‚ 7.40 (1 H‚ br s‚ 1-CH)‚ 7.85 (3 H‚ m‚ 6‚7‚8-CH)‚ 8.29 (1 H‚ br s‚ 9-CH). vmax /cm-1 3290 (alkyne C-H stretch‚ m)‚ 1234 (alkyl aryl ether C-O stretch‚ s) and 1185 (sulfonate S=O stretch‚
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Chemistry 116: General Chemistry Syracuse University Project Advance Spring 2009 Exam #4 Name Date 1. The bombardment of with nuclei gives two products‚ one of which is The other product is ________. A. B. C. D. E. 2. The decay of to occurs through the emission of a(n) ________. A. alpha particle B. beta particle C. neutron D. proton E. positron 3. Radionuclides which have too low of a neutron/proton ratio generally decay through ________
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