the following compounds: (b) ClCH2CH2CH2CH(OH)CH3 (c) CH3CH2CH=CBrCH2CH3 would attract electrophile or nucleophile? Give examples of (i) nucleophiles and (ii) electrophiles. 10. Classify the reactions below: (a) CH3CH2CH=CHCH3 + Br2 CH3CH2CHBrCHBrCH3 (b) CH3CH(OH)CH3 + KOH(alc.) CH3CH=CH2 + KBr + H2O (c) CH3CH2CH2OH + KMnO4 CH3CH2COOH (d) CH3CH2CHBrCH3 + NaOH(aq) CH3CH2CH(OH)CH3 + NaBr(aq)
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Electron Spin Nuclear Magnetic Resonance (NMR) Spectroscopy Organic Chemistry BCH3015 • Electron spin is quantized. • The spin quantum number ms has only two allowed values: ms = +½ or –½ • The two directions of spin create oppositely spin create oppositely directed magnetic fields. fields. 61 Proton Spin Organic Chemistry BCH3015 62 Nuclear Spin States • A proton (the nucleus of a 1H atom) also possesses spin. For each nucleus having the spin quantum number
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Oxidation of an Alcohol: Oxidizing Methoxybenzyl Alcohol to Methoxybenzaldehyde Using Phase-Transfer Catalysis PURPOSE OF THE EXPERIMENT Oxidize methoxybenzyl alcohol to methoxybenzaldehyde‚ using sodium hypochlorite as the oxidizing agent and tetrabutylammonium hydrogen sulfate as the phase-transfer catalyst. Monitor the progress of the reaction by thin-layer chromatography. BACKGROUND REQUIRED You should be familiar with extraction‚ evaporation‚ and thin-layer chromatography techniques
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1. Polar molecules A. have bonds with an unequal distribution of electric charge. B. must form ions in water solution. C. have bonds with an equal distribution of electrical charge. D. have bonds with an overall negative charge. E. have bonds with an overall positive charge. Correct See Section 2.2: How Do Atoms Bond to Form Molecules? Points Earned: 1/1 Correct Answer: A Your Response: A 2. Hydrocarbons are _______ and _______‚ whereas salts are _______ and _______. A. nonpolar;
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Genomes‚ Transcriptomes‚ and Proteomes 1 1.1 DNA 1.2 RNA and the Transcriptome 1.3 Proteins and the Proteome When you have read Chapter 1‚ you should be able to: Define the terms “genome‚” “transcriptome‚” and “proteome‚” and state how these are linked in the process of genome expression. Describe the two experiments that led molecular biologists to conclude that genes are made of DNA‚ and explain the limitations of those experiments. Give a detailed description of the structure of
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Name: ____________________________ CHEM 420 Exam 1 Fall 2013 Dr. David Hodapp Read and sign the CRC Honor Code on the next page before starting the exam. Answer all essay questions using complete sentences and proper spelling‚ punctuation‚ and grammar. Points Multiple Choice 34 Matching 12 Fill-In 14 Problems/Essay Questions 90 Total 150 o G = -RT(lnK ) = -2.303RT(log K ) 10 eq k r Ae eq Ea / RT 1 Cosumnes River College Honor Code*
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most likely to undergo rearrangement? A. NaOH in protic solvent B. C. D. E. water Concentrated H2SO4 KOC(CH3)3 in aprotic solvent NaNH2 in aprotic solvent Chem. 121 Final Exam Fall 2009 Name_____________________________________ O. The rate equation that describes the reaction shown below is: A. k[A] B. C. D. E. k[C][D] k[B] k[A][B] k([C][D][E]/[A][B]) Br + NaOC(CH3)3 + NaBr + HOC(CH3)3 A B C D E P. The main product of the oxidation of the following compound with
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Office Use Only | | | | | | | | | | | | Monash University Semester Two Examination Period 2010 Faculty Of Science EXAM CODES: CHM1022 TITLE OF PAPER: CHEMISTRY EXAM DURATION: 3 hours writing time READING
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Version 017 – Exam 1 – Laude – (52455) This print-out should have 30 questions. Multiple-choice questions may continue on the next column or page – find all choices before answering. 001 1 003 6.0 points What would be pH of a 1 M solution of a very expensive weak base‚ unobtainamine‚ whose pKb is 3.4? 6.0 points 1. 12.3 correct Consider a reaction with ∆Hrxn = 997 kJ · mol−1 . Which of the following pairs of K values and temperatures is possible for this reaction? 1. K1 =
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Edexcel A2 Chemistry Questions and Answers Contents Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Unit 4 Rates‚ equilibria and further organic chemistry Multiple-choice questions ..............................................................................7 Structured questions . . . . . . . . . . . .
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