features. (Allow one lined page). [Total 7 marks] 4. Cylcohexane and cyclohexene are both cyclic hydrocarbons. cyclohexane cyclohexene (i) What is the molecular formula of cyclohexene? ............................................. [1] (ii) What is the empirical formula of cyclohexene? .............................................. [1] (iii) Calculate the percentage‚ by mass‚ of carbon in cyclohexene. Give your answer to two significant figures. answer ...............
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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 cyclohexane were placed into tubes A and B‚1 ml cyclohexene were placed into test tube C and D‚1ml toluene to test tube E and F 4. 5 drops of bromine water were placed into
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are immiscible and all are flammable. Tests for active unsaturation indicate that hexane‚ heptane‚ cyclohexane‚ benzene and toluene are saturated while cyclohexene is actively unsaturated. Hexane‚ heptane‚ benzene‚ and toluene are classified as aliphatic while cyclohexane‚ and cyclohexene are aromatic. All are not oxidized except for cyclohexene. I. Introduction Hydrocarbons are compounds that contain only carbon and hydrogen. Hydrocarbons can be aromatic or aliphatic
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Lab 22: 4-Methylcyclohexene Abstract: We treated 4-methylcyclohexanol with phosphoric acid‚ and after purification we produced the end product 4-methylcyclohexene. We determined we had a pure product based on the results of the tests with Br2 and KMnO4‚ as well as the IR absorbtion spectrum of the final product. Purpose: The purpose of this experiment is to obtain pure 4-methylcyclohexene by reacting 4-methylcyclohexanol and phosphoric acid. Through distillation
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Analysis of Hydrocarbons Leoncito‚ Alyssa Lynn‚ Libatique‚ Keith Martin P.‚ Ligot‚ Nestlhyn B.*‚ Lim‚ Jamie Therese T. Department of Psychology‚ University of Santo Tomas‚ Manila‚ Philippines Abstract Four organic samples: hexane‚ cyclohexene‚ napthalene and toulene were given to serve as reference standards to characterize and distinguish four unknown given samples. Nitration‚ bromine and basic oxidation testswere conducted to classify the different samples from being an aliphatic‚ or aromatic
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Analysis of Hydrocarbons Myra Gurango‚ Geneva Guy‚ Micah Hernandez* and Joyce Lagarde Department of Chemistry‚ University of Santo Tomas‚ Manila‚ Philippines Abstract The organic compounds hexane‚ toluene‚ cyclohexene and naphthalene in hexene were subjected to parallel chemical testing to differentiate their intrinsic physical properties in terms of structure and behavior. The physical state and color were noted by simple physical observation. Nitration Testing was conducted for preliminary
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attachment of an OH to the ring; the ether group is oxygen bonded to two R groups on either side of it. THC contains 20 sigma bonds and four pi bonds. Three rings are present as well‚ two cyclohexene rings and one benzene ring. Attached to the first cyclohexene ring is one methyl group. On the second cyclohexene ring‚ two methyl groups are present as well as the ether group. On the benzene ring‚ the hydroxyl group is the substituent‚ and a pentane chain is attached to the ring as well. THC contains
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2-bromo-1-ethyl-2-butene D. 3-bromo-2-ethyl-1-butene E. 3-bromo-2‚2-dimethyl-1-butene 9. Assign an IUPAC name to the unsaturated hydrocarbon shown below. A. methyl-3-cyclohexene B. 4-methyl-1-cyclohexene C. 3-methylcyclohexene D. 1-methyl-3-cyclohexene E.
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Compilation of “Dehydration of Methylcyclohexanol” Blog entries: A common Sophomore Organic Chemistry laboratory experiment that has great potential for further research is the acid catalyzed dehydration of simple alcohols. The classic dehydration of 2-methylcyclohexanol experiment that was introduced in Journal of Chemical Education in 1967 Taber(1967)JCE:44‚p620. The rather simple procedure of distilling an alcohol with an aqueous acid has spawned several investigations that have resulted
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Preparation and Characterization of Hydrocarbons Miranda‚ Marilyn1‚ Comaling‚ Leif Anthony B.2 1Professor‚ School of Chemical Engineering‚ Chemistry and Biotechnology‚ Mapua Institute of Technology; 2Student (s)‚ Subject/Section‚ School of Chemical Engineering‚ Chemistry and Biotechnology‚ Mapua Institute of Technology ABSTRACT Hydrocarbons are compounds that only contain carbon and oxygen atoms. Alkanes‚ alkenes‚ alkynes and aromatic rings are the four classifications of hydrocarbons
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