the freezing point of cyclohexane we needed a test tube holder‚ 400 mL beaker‚ 600 mL beaker‚ large test tube‚ salt‚ water‚ ice‚ rubber stopper‚ stirrer‚ and thermometer. We took exactly 10 mL of cyclohexane using a buret and put it into the test tube. We then weighed out 50g of salt‚ mixed it in 400 mL of water‚ then added ice. Then the thermometer was inserted through the rubber stopper with the stirrer around the base of the thermometer to about halfway into the cyclohexane. The test tube is then
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Oil Characterization 1 Oil Characterization 1 © 2003 AspenTech. All Rights Reserved. EA1031.31.05 05 Oil Characterization.pdf 2 Oil Characterization Workshop The petroleum characterization method in HYSYS converts laboratory analyses of condensates‚ crude oils‚ petroleum cuts‚ and coal-tar liquids into a series of discrete hypothetical components. These petroleum hypo components provide the basis for the property package to predict the remaining thermodynamic and transport properties necessary
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in the bond types between the carbons. Objective: 1- To observe the flame of cyclohexane and cyclohexene. 2- To observe the effect of adding sulphuric acid on cyclohexane and cyclohexene. Apparatus Needed: Test tubes and rack‚ watch glass‚ and matches. Chemical Needed: Cyclohexane‚Cyclohexene‚ 1M of sulphuric acid. Procedures: A. Combustion (to be performed under fume hood) 1. 2-3 drops of liquid cyclohexane are dropped onto a watch glass. 2. Fire is set to it. 3. The flame is observed
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into a beaker filled with solvent. The solvent will then flow through the paper. The solvent chosen depends highly on its polarity as this will be the characteristic that will separate the different substances. Petroleum‚ ether‚ hexanes‚ cyclohexanes and toluene are some examples of solvents with different polarities as well as increasing polarities.
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Chem 3418 Organic Chemistry Laboratory I Acid Base Review Definition In general‚ an acid is a substance that can donate a proton (H+) and a base is a substance that can accept a proton. Any proton in an organic molecule can potentially be donated. The most acidic proton in a molecule would be donated first. Any lone pair in an organic molecule can act as the proton acceptor. An acid (HA) reacts with a base (in this case H2O) to form the conjugate base of the acid (A-) and the conjugate acid of the
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Comparing alkanes and alkenes Aim: Is cyclohexane more or less reactive than cyclohexene in the presence or absence of light Hypothesis The cyclohexene will reactive the fastest because being an "ene" it has a electron rich area making it more reactive than cyclohexane but neither one of the will react without light Materials * 4x 250ml conical flasks * 2 rubber stoppers * Aluminium foil * Cyclohexane * Cyclohexene * Bromide water * Measuring cylinder
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Experiment 3: Cryoscopic Determination of Molecular Weight Aim: The primary objective of the experiment is to calculate the total molecular mass of the compound benzoic acid in a predetermined amount of cyclohexane. Introduction: One of the key concepts in this experiment is the term freezing point depression. The definition of this phrase is that when a solute is dissolved into a solvent‚ their collective boiling point will be less than that of the original boiling point of the solvent. This incidentally
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Tris(acetylacetonato)manganese Dissolve 0.26 g manganese(II) chloride tetrahydrate and 0.68 g of sodium acetate in 10 mL of distilled water. Add 1 g acetylacetone and swirl the mixture. With magnetic stirring‚ add dropwise a solution of 0.052 g potassium permanganate in 2.5 mL of distilled water over a period of 10-15 minutes. Stir for 10 minutes‚ then add dropwise a solution of 0.63 g sodium acetate in 2.5 mL distilled water. Heat the resulting mixture on a hot plate to between 60 and 70oC for
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were determined. Recognising the fact that the industrial route to cyclohexene from benzene hydrogenation yields a mixture of cyclohexene and cyclohexane which are di$cult to separate‚ some experiments on oxidation of the mixture of cyclohexene and cyclohexane were also conducted. The values of rate constants remain unchanged in the presence of cyclohexane. The reaction was also studied in an aluminium lined reactor to examine the wall catalytic e!ect‚ if any‚ of the stainless steel wall. The reaction
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CLASSIFICATION TESTS A. Acids There are relatively few suitable tests for carboxylic acids. Classification is based mostly upon solubility tests. If the compound is water soluble‚ test the aqueous solution of your compound with pH paper (also check the pH of the original water). If the compound is water-insoluble and it dissolves in 5% (1.5M) sodium hydroxide and 5% NaHCO3 solutions as performed in your solubility tests‚ it can be classified as a carboxylic acid. Establish an equivalence value
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