break the bond. 3. An experiment was carried out to measure the heat of combustion of a fuel‚ 1-propanol. The student found that when 1.0g of 1-propanol had been used up‚ the temperature of the water had risen by 15oC. He knew the specific heat capacity of water and was able to calculate the amount of heat absorbed by 200g of water. Calculate the amount of heat released by the combustion of 1-propanol. 4. Calculate the heat of combustion per mole. 5. Calculate the heat released per gram for
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Introduction • The problem we are studying was to determine the cellular damage of various concentrations of propanol‚ ethanol‚ methanol‚ NaCL‚ and sodium dodecyl sulfate henceforth known as SDS on Beta vulgaris to ultimately distinguish the ability of each solution to permeate the membrane of the Beta vulgaris. • Beta vulgaris contains a beta cyanin which is a water-soluble red-pigment‚ which remains in a healthy vacuole surrounded by the tonoplast membrane. When we damage the tonoplast membrane
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other important uses not explored in this laboratory. This experiment explores these techniques to identify an unknown amino acid by TLC and analyze food colors using paper chromatography. By using 2.0 mL of dimethoxyethane and 18 mL of absolute ethanol as the developing solution‚ and then spotting each sample of amino acids and an unknown on the silica gel chromatography plate‚ we began the process of TLC plating. The ninhydrin solution was sprayed on the chromatography plate and allowed to dry
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12/14/13 Pre 3 Reduction of a Ketone 3. 10/10 points | Previous Answers NC SUMEOrgC hem2 3.PRE.003. Which of the following cannot be made by the reduction of a ketone or aldehyde with NaBH4 in methanol? 1-butanol 2-methyl-2-propanol 2-methyl-1-propanol 2-butanol Additional Materials Reduction of a Ketone 4. 10/10 points | Previous Answers NC SUMEOrgC hem2 3.PRE.004. In general‚ the reduction of a ketone to an alcohol can be accomplished by all of the following except
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In this experiment Methyl salicylates are prepared along with ethyl and 2-propyl salicylates in which the reaction proceeds with salicylic acid as the starting material along with the other reactants such as methanol‚ ethanol and 2-propanol. More specifically‚ sulfuric acid is employed as the suitable acid catalyst. FIGURE 2: Formation of methyl salicylate from salicylic acid. 2. CALCULATION: PERCENTAGE YIELD
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Process Description Acetaldehyde is produced via dehydrogenation of Ethanol. The reaction is as below: CH3CH2OH CH3CHO + H2 ‚ ΔH = +82.5 kJ/mol Besides the main reaction producing Acetaldehyde‚ there are three side reactions present in the reactor‚ as shown below: 2 CH3CH2OH CH3COOC2H5 + H2 2 CH3CH2OH CH3(CH2)3OH + H2O CH3CH2OH + H2O CH3COOH + H2O The feed of 90% Ethanol is kept in a storage tank with an air vent. Tank blanketing is used in the storage tank with Nitrogen gas. This
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mL. Heat this water until it boils. Turn off the heat source after boiling Follow the chart below for the following steps Ester # Acid Alcohol 1 Acetic Acid Butanol 2 Acetic Acid Octanol 3 Acetic Acid Methanol 4 Acetic Acid Ethanol 5 Butanoic acid Butanol 6 Butanoic acid Octanol 7 Butanoic acid Methanol 8 Butanoic acid Ethanol Place tens drops of the acid in your test tube. Add 10 drops of the required alcohol to the test tube. Refer to the chart to check what combination
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Competitive Nucleophiles With 1-Butanol In this experiment you will determine the nucleophile strength of bromide ion vs. chloride ion in their reaction with 1-butanol in acidic solution. The reaction is shown below. The reagents are a convenient source of HBr and HCl. The reaction is an SN2 reaction with H2O as the leaving group and Cl- and Br- as the nucleophiles. The molar amounts of Cl - and Br- are equal‚ so the better nucleophile will lead to more product. You will analyze the amounts of 1-bromobutane
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For example alcohols react with acid anhydrides to form esters: O CH3CH2OH Ethanol + O H3C O O CH2CH3 + CH3COOH Acetic acid C C H3C CH3 O Acetic anhydride Ethyl acetate Acid chlorides form esters by reaction with alcohols. O CH3CH2CH2OH 1-Propanol + H3C Cl Acetyl chloride C H3C O C O CH2CH2CH3 + HCl n-Propyl acetate In the latter reaction‚ an organic base such as pyridine is usually added to react
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ending at twelve. Alcohols are named after the number of (OH) hydroxyl groups within them‚ Methanol being one‚ Ethanol containing two carbons and so on. For this experiment the alcohols used were Methanol‚
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