3/5/2011 EXPERIMENT EXPERIMENT 8 OBJECTIVES CONCEPTS REAGENTS PROCEDURE RESULTS DISCUSSION IR ANALYSIS 8 Objectives to differentiate various types of oxygen-bearing organic compounds to device a scheme to distinguish each functional group Analysis of Oxygen-bearing Organic Compounds alanx3@yahoo.com OBJECTIVES CONCEPTS REAGENTS PROCEDURE RESULTS DISCUSSION IR ANALYSIS to characterize an unknown sample through parallel chemical tests ARMSALCEDO ARMSALCEDO alanx3@yahoo
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Experiment #7 Fall 2014 Dehydration of an alcohol NAME Nick Weinberger POSTLAB 1. Show the mechanism for the dehydration of -tetralol under conditions employed in the lab. Show all intermediates‚ and show electron flow with arrows. 2. What general mechanism most likely applies to this reaction (SN2‚ E2 etc)? E1 3. Why was acid employed in this reaction? The acid was used to protonate the leaving group (OH) to form water which is a much better leaving
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first-hand investigation to compare the reactivity of an alkene with its corresponding alkane. (a) State the name of the alkene. 2002:16(a) 1 (b) Outline a procedure to compare the reactivity of this alkene with its corresponding alkane. 2002:16(b) 2 (c) Describe the results obtained from this first-hand investigation and include relevant chemical equations. 2002:16(c) 3 3 Explain why alkanes and their corresponding alkenes have similar physical properties‚ but very different
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Product The terminal alkene is the least substituted and therefore the least favored. 3) The starting alcohol consisted of a mixture of stereoisomers. Draw all the possible stereoisomers of 2-methylcyclohexanol. 4) The reaction you carried out is considered to be reversible. Write an equation for the equilibrium constant (Keq) for the reaction in terms of the concentrations of reagents. Give 2 reasons why your reaction favored the formation of alkenes. We were removing
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L-6 MCQ (A) MCQs of the Textual Exercise 1) In haloalkane _________ bond is formed between carbon and halogen. (a) Ionic (b) van der Waals (c) Covalent (d) hydrogen 2) In haloarene compounds‚ halogen combines with carbon having which hybridization? (a) sp2 (b) sp3 (c) sp (d)dsp2 3) In haloalkane‚ carbon in C-X bond possesses which partial electric charge? (a) Charge less (b) positive (c) negative (d) anionic 4) Which of the following bonds is the strongest?
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Analysis of Hydrocarbons Jessa Grace B. Castillo* and Stephanie Chua Department of Chemistry‚ University of Santo Tomas‚ Manila‚ Philippines ______________________________________________ Hydrocarbons are organic compounds containing only hydrogen and carbons and further divided in major types. Hydrocarbons react differently in reagents. The basis of determining an unknown hydrocarbon is due to the differences in reactions of hydrocarbons. An unknown compound is determined using tests.
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1‚6-Heptadiyne Common names: prefix the substituents on the triple bond to the name “acetylene” IUPAC name: Common name: 2-Butyne D imethylacetylene 1-Buten-3-yne Vinylacetylene Physical Properties Similar to alkanes and alkenes of comparable molecular weight and carbon skeleton 2-Butyne 1-Pentyne Melting Point Formula (°C) -81 HC CH CH3 C CH -102 CH 3 CH2 C CH -126 -32 CH3 C CCH3 CH 3 ( CH2 ) 2 C CH -90 1-Hexyne CH 3 ( CH2 ) 3 C CH 1-Octyne
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HOMOLOGOUS SERIES | ALKANE | ALKENE | ALCOHOL | CARBOXYLIC ACID | ESTER | GENERAL FORMULA | CnH2n+2‚ where n= 1‚2‚3‚.. | CnH2n‚ where n= 2‚3‚4‚.. | CnH2n+1OH‚ where n= 1‚2‚3 | CnH2n+1COOH‚ where n= -0‚1‚2‚3‚.. | CnH2n+1COOCmH2m+1‚ where n= 0‚1‚2‚3‚.. and m= 1‚2‚3‚.. | PHYSICAL PROPERTIES | * MP & BP Size of hydrocarbon molecules inc‚ f.o.a inc‚ more heat overcome f.o.a * Density Mass per molecule inc faster than volume per molecule * Gas – liquidSize of hydrocarbon molecule inc‚ f
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Semester: fall 2011 Practice to Chapter 12 (Alkenes & Alkynes *1. Consider the following: CH3CH2CH=CHCH2CH3 CH3CH2CH2CH2CH=CH2 I II CH3CH=CHCH2CH2CH3 CH2=CHCH2CH2CH2CH3 III IV Which two structures represent the same compound? A) I and II B) II and III C) I and III D) II and IV E) None of these *2. Give the IUPAC name for A) 3-Methyl-4-hexyne B) 4-Methyl-2-hexyne C) 2-Ethyl-3-pentyne D) 4-Ethyl-2-pentyne E)
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breaking. Nucleophiles‚ electrophiles and free radicals. Lewis acid and Lewis base. Orbital hybridization: sp3‚ sp2‚ sp. Conjugated double bonds and resonance 2. Classification of organic compounds Nomenclature: homologues series‚ alkanes‚ cycloalkanes‚ alkene‚ alkynes‚ alkyl halides‚ alcohols‚ amines‚ aldehydes‚ ketones and carboxylic 4 acids and their derivatives. 3. Stereochemistry Conformations of alkanes and cycloalkanes. Isomerism and optical activity. Structural isomers and stereoisomers. Geometrical
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