Methyl Hexanode Hexanal Chloride Hex-3-en-2-one Spartan Vibrational frequencies: Compound Frequencies (in ) 2-Hexanone 1934 Hexanoic Anhydride 1946 Hexonic Acid 1964 Hexanoamide 1895 Hexanal 1918 Methyl Hexanode 1940 Hexanal Chloride 1968 Hex-3-en-2-one 1916 Frequencies from the IR spectrophotometer: Compound Frequencies (in ) 2-Hexanone 1716.2 Hexanoic Anhydride 1816.7 Hexonic Acid 1708.7 Hexanoamide 1628.3 Hexanal 1725.1 Methyl Hexanode
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EXPERIMENT 5: CHROMATOGRAPHY Abstract Paper Chromatography uses a chromatogram paper as its stationary phase and the solvent as the mobile phase. Retention factor is the ratio of the distance travelled by the sample to the distance travelled by the solvent. This experiment aims to separate organic compounds‚ to compute Rf values and to identify unknown compounds using Rf values. The ten samples underwent paper chromatography to determine the components of the unknown sample. The mobile phase allowed
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Title: ACID BASE TITRATION. Objectives: 1. To determine the concentration of acid using titration. 2. Skills of titration techniques. Apparatus: 1. 250 volumetric flask 2. 10mL measuring cylinder 3. 25mL pipette 4. 50mL burette 5. 250mL beaker 6. 150mL conical flask 7. Retord stand 8. White tile 9. Stopwatch 10. Pipette bulb Chemicals: 1. HCl solution 2. 0.1M NaOH solution 3. H2SO4 solution 4. Distilled water 5. phenolphthalein
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monobasic Lewis acid. At room temperature‚ it exists as white powder or colourless crystals with a chemical formula of H3BO3 or B(OH)3. Apparatus and materials: •Sodium tetraborate •Concentrated hydrochloric acid •Concentrated sulphuric acid •Methyl red indicator •Mannitol •Beaker •Methanol •Distilled water •Electric heater •Ice •Test tube •Test tube rack •Glass rod •Suction funnel •Suction pump •Filter flask •Filter paper •Spatula •Watch glass •Splint Procedures:
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CHM 2210 – Fall 2012 – Test 4 Name (print):_________________________ 1. What is the IUPAC name for the following compound? a) b) c) d) 3-methyl-1-penten-4-yne 3-methyl-1-buten-4-yne 4-methyl-4-penten-1-yne 4-methyl-4-buten-1-yne 2. What is the major organic product obtained from the following reaction? 2 equiv Br2 a) b) c) d) 2‚3-dibromobutane 2‚2‚3‚3-tetrabromobutane 2‚3-dibromobutene 2‚2-dibromobutane 3. What is the best choice of reagent(s) to perform the following transformation
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isopropanol. Pre-Lab Questions: Mass of empty pipet 1.557 g Mass of empty pipet and condensed methyl alcohol 1.571 g Mass of pipet and water 16.001 g Mass of condensed methyl alcohol .014 g Mass of water in filled pipet 14.444 g Volume of pipet 0.014483--> 14.444 g(1ml/0.9973 g/mL)(1L/1000mL) Molar mass of methyl alcohol (experimental) 30.44 g/mol = (.014g)(0.082057)(372.65 K)/(.971 atm)(0.014483 L) Molar mass of methyl alcohol (theoretical) 32.04 g/mol 2a. If only part of the pipet was immersed in boiling
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The Union Carbide plant was established in Bhopal in 1969 and it began to produce the insecticide Carbaryl. methyl isocanyte is an ingredient of carbaryl‚ and on the morning of December 3‚ 1984‚ a holding tank containing 43 tons of methyl isocyanate overheated and released the toxic gas. Because methyl isocyanate is heavier than air‚ it traveled over the ground through the Bhopal city center. The transportation system collapsed‚ and many people were trampled to death in a mad rush to flee the visible
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Give an example of a transferase and lyase and explain how they differ. An example of a transferase is peptidyl transderase. An example of lyase is hydroeroxide.Transferases happen when a group of enzymes transfer methyl or possibly glycosyl from one molecule to another. Lyases take place with the joining of two specific molecules by a double bond. A lot of the time you will see this with carbon-carbon bonds. 6. Explain the three steps of translation. The three steps
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Carbon and Its Compounds Carbon: Introduction Atomic Number: 6 Electronic Configuration: 2‚ 4. Valence electrons: 4 Property: Non-metal Abundance:- Carbon is the 4th most abundant substance in universe and 15th most abundant substance in the earth’s crust. Compounds having carbon atoms among the components are known as carbon compounds. Previously‚ carbon compounds could only be obtained from a living source; hence they are also known as organic compounds. Bonding In Carbon:- The Covalent
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benzene imparts stability (aromaticity); responsible for resistance to addition reactions (involve breaking delocalized bonding) Benzene Derivatives- produced when one or more H atoms on benzene is/ are replaced by new group/s such as alkyl groups (methyl‚ ethyl and so on) or halogens. Common groups include hydroxyl (- OH)‚ amino ( -NH2)‚ nitro (-NO2)‚ and carboxyl (-COOH) Naming Benzene Derivatives using IUPAC System Monosubstituted benzene: name of substituent + benzene F F NO2 Nitrobenzene CH2CH3
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