20‚ 2013 TITLE: Structure Elucidation of Organic Compounds Using Infrared Spectrometry and Computer Molecular Models. OBJECTIVES: Using the Spartan Student v5.0.0. Software in computer‚ determine the absorption frequencies of C=O str.‚ C-H str.‚ and C-H bend in the following molecules: 1. Benzaldehyde 2. Ethyl Benzoate 3. 3-Pentanone 4. Pentanal * For given unknown Infrared spectra‚ figure out the compounds based on the absorption frequencies of C=O
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SPECIFICITY Compound Relative retention time Related sustances From individual solution From blend solution Varation H-GTBRC01 (0.15%) 0.65 0.65 0.00 H-GTBRC02 (0.15%) 0.80 0.80 0.00 H-GTBRC03 (0.15%) 0.43 0.43 0.00 Gefitinib (0.1%) 1.00 1.00 0.00 Observation: No interference was observed due to blank at the retention time of H-GTBRC01‚ H-GTBRC02‚ H-GTBRC03 . The order & relative retention time obtained from individual solution & blend solution were
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Mohamed Hatab‚Ibraheem Sattour‚Rahim Fazil‚Tarik Ahroui Simple sentences‚compound sentences‚complex sentences‚compound complex sentences Simple sentence:Contains a subject a predicate‚and expresses a complete thought Ex.Some students like to study in the morning Identify the subject and predicate in these simple sentences Ex.1 1.Bill and Bob auditioned for the lead role in the play. 2.The kittens were adopted by the family. 3.Peanut butter
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The compound is the substance that can be two or more elements that can be changed. Water is a compound. It contains both Hydrogen and oxygen that can stand alone by itself. The mixture is when two different substances that are blended together. The air is a mixture of these elements carbon dioxide‚ nitrogen‚ and other stuff. Most mixtures are known to be naturally. The main difference between the compound and the mixture is how they are combined. In the pure substance‚ the only way to know if
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COrdination compounds Question 9.1: Explain the bonding in coordination compounds in terms of Werner’s postulates. =Werner’s postulates explain the bonding in coordination compounds as follows: (i) A metal exhibits two types of valencies namely‚ primary and secondary valencies. Primary valencies are satisfied by negative ions while secondary valencies are satisfied by both negative and neutral ions. (In modern terminology‚ the primary valency corresponds to the oxidation number of the metal
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Kate Kirby June 6‚ 2013 Title: Extraction of an Unknown Compound Purpose: The purpose of this experiment was to separate a mixture of two or more unknown compounds and identify them based on their melting point and reactivity with an acid or a base. Compound studied/Reactions: The organic solvent used in this experiment was methyl t-butyl ether (MTBE‚ 2-methoxy-2-methylpropane). The unknown that dissolved in the MTBE‚ but was insoluble in water. MBTE is very volatile and flammable. It was
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test Sample Iodine solution Original colour Final colour Starch solution Distilled water D Test for lipids using grease spot test Sample Presence of translucent spot after drying? Before immersing into organic solvent After immersing into organic solvent Cooking oil Egg white solution Distilled water E Test for proteins using Albustix paper Sample Albustix paper Original colour Final colour Egg white solution Distilled water F Test for
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Chromatography • • • Separation based on polarity of compounds Two potential phases for a compound to exist in: mobile and stationary Partitioning of compounds between mobile phase and stationary phase occurs: o Compounds that are less polar move more in the mobile phase‚ those that are more polar “stick” more on the stationary phase o These polarity differences cause compounds move at different rates and therefore can be separated 1. Mobile Phase: the phase the moves; can be gas or
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CHEMISTRY COURSE TITLE: General Organic Chemistry COURSE CODE: CHM 121 ‚ UNIT: 2.0 . INTRODUCTORY AND IMPORTANCE OF ORGANIC CHEMISTRY Organic chemistry is the study of the compounds of carbon. Carbon compounds are far more numerous than those of other elements because carbon are able to bond together to form a wide range of chains and rings. The subject is named organic chemistry because living organisms are composed of carbon compounds. Organic chemistry could be regarded as the
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constituent compounds discovered in past centuries - although not all aromatic compounds known today share the same distinction (many are in fact‚ odorless or even unpleasant)‚ they are the principle components in such pleasant smelling substances as cinnamon‚ licorice‚ wintergreen‚ clove & vanilla CLASSIFICATION – - also known as arenes‚ many aromatic compounds possess the benzene ring functional group: G’s FG = aromatic compound or arene benzene ring or aryl grp - other compounds which do
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