Required: -4 Test tubes -Dropper - Cyclohexane (C6H12) (3ml) - Cyclohexene (C6H10) (3ml) - Toluene (CH3C6H5) (3ml) - Potassium Permanganate solution (KMnO4) .01 mol L-1 (4ml) - Sulfuric Acid (H2SO4) 2mol L-1 (2ml) - Bromine Water (Br2) (5ml) Procedure: Reaction of hydrocarbons with acidified permanganate: 1) Into three separate‚ labeled test tubes place 1 ml of cyclohexane‚ cyclohexene and toluene respectively. 2) In a separate test tube add 4 ml of 0.01mol L-1 KMnO4 to 2 ml of 2mol L-1
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Solvents used were water‚ methanol‚ n-butanol‚ ethylene glycol‚ acetone‚ hexane‚ toluene‚ ethyl acetate‚ and dichloromethane. Then added to the vials was 0.5 mL of isooctane in each one. The vials were then swirled and observed to determine solubility. In part two of the experiment‚ 0.5 mL of concentrated sulfuric acid was added into
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less volatile liquid. Thus the temperature has to increase or spike to boil the remaining substance. In the case of toluene and cyclohexane‚ cyclohexane is more volatile and has a lower boiling point. Simple distillation only evaporates and condenses a liquid once where in fractional
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Mueller CE‚ Gibbs HR. Toluene sniffing and severe sinus bradycardia. Ann Intern Med. 1985;10(3):103:482. 29. Taylor GJ‚ Harris WS. Glue sniffing causes heart block in mice. Science. 1970; 170(3960):866–8. 30. Wiseman MN‚ Banim S. ‘Glue-sniffer’s heart? Br Med J. 1987; 294(6574):739. 31. Carder Jr‚ Fuerst RS. Myocardial infarction after toluene inhalation. Pediatr Emerg Care. 1997; 13(2):117–9. 32. Vural M‚ Ogel K. Dilated cardiomyopathy associated with toluene abuse. Cardiology
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Lañez‚ Kristine Department of Psychology College of Science University of Santo Tomas España Manila 1015 Abstract A hydrocarbon is strictly composed of carbon and hydrogen atoms only. Five hydrocarbons were used namely hexane‚ cyclohexene‚ toluene‚ naphthalene (in hexane)‚ and the unknown (which will be known through parallel chemical tests). Three tests‚ nitration test‚ bromine test and basic oxidation test were conducted to fully differentiate each type of hydrocarbon from one another. Nitration
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Objective: The objective of this lab was to find and examine the viscosities of ideal and non-ideal solutions. The ideal being the toluene/p-xylene and the non-ideal being the methanol/water. The second objective of this lab was to investigate the temperature dependence of viscosity (Halpern‚ 17-1). Introduction: Viscosity is the resistance to flow of a certain fluid. In this experiment two solutions are used. According to the definition of viscosity mobile liquids have a relatively
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pamper herself. The last thing on her mind are the toxins that are in the actual nail polish. Little does she know‚ there are plenty of chemical compounds that are in each nail polish bottle‚ three of which are very toxic. They are formaldehyde‚ toluene‚ and dibutyl pthlate (DBP)-also known as the "toxic trio." These three toxins are in many famous nail polishes including the two leading brands‚ OPI and Essie. In 2006‚ a group of young women activists fought to eliminate the toxins‚ and they did
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burns off and mostly only toluene remains. The microscale graph seems to be accurate because it shows the large jump where the cyclohexane is burned off. To view the apparatuses used in the experiment look at the attached pictures. To compare the simple and fractional distillation‚ our GC analysis shows the samples we submitted. The first samples of our simple distillation showed that 76.21 percent of the mixture was composed of cyclohexane and 23.36 percent was toluene. The first few drops of
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Chemistry : Important Questions For CBSE Class XII ( Haloalkanes and Haloarenes) (Q.1) Choose the incorrect statement about the benzyl chloride: ( 1 mark ) (a) It is less reactive than alkyl halides. (b) It can be oxidized to benzaldehyde by boiling with copper nitrate solution. (c) It is a lachrymatory liquid and answers beilstein’s test. (d) It gives a white precipitate with alcoholic silver nitrate (Q.2) Dry ether The reaction RX + 2Na + RX _______________? R-R + 2NaXis called. ( 1 mark
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Viscosity of Liquids Part I: Low Viscosities Mona Kanj Harakeh 1 Objectives • To measure and analyze the viscosities of ideal (Toluene/p-Xylene) and nonideal (Methanol/Water) binary solutions and their components. • To determine the Activation Energy to viscous flow. • The effect of temperature change on the viscosity will be studied. Method: The viscosities of liquids are determined by measuring the flow time for various liquids in an Ostwald viscometer. 2 Ostwald viscometer 3
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