SCH 4U1 FINAL EXAM REVIEW ATOMIC STRUCTURE AND MOLECULAR ARCHITECTURE 1. Describe the wave mechanical model of the atom. 2. Write the ground state electron configuration for Br. 3. Explain why the first ionization energy for Ne is significantly greater than Na. 4. Distinguish between ionization energy and electronegativity. 5. How does VSEPR Theory account for the fact that the bond angle in H2O is less than NH3? 6. Which of the following molecules are polar? Include diagrams
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w w w e tr .X m eP e ap UNIVERSITY OF CAMBRIDGE INTERNATIONAL EXAMINATIONS International General Certificate of Secondary Education .c rs om *2925136620* CHEMISTRY Paper 3 (Extended) 0620/33 May/June 2012 1 hour 15 minutes Candidates answer on the Question Paper. No Additional Materials are required. READ THESE INSTRUCTIONS FIRST Write your Centre number‚ candidate number and name on all the work you hand in. Write in dark blue or black pen. You may use a pencil for any diagrams‚ graphs
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Abstract In the asymmetric synthesis of (S)-Ibuprofen‚ the compound is synthesized in nonracemic form directly from an achiral precursor. First‚ racemic ibuprofen was converted to aN achiral ketene via the acid chloride by adding thionyl chloride followed by triethylamine. Then‚ ketene was reacted with a chiral and nonracemic (S)-ethyl lactate produces a mixture of diasteromeric esters of ibuprofen derivatives where (S) configuration is predominantly. Finally‚ hydrolysis of the ester then provides
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CHEMISTRY OF NATURAL PRODUCTS Terpenoids Sameena Bano Department of Chemistry Faculty of Science Jamia Hamdard New Delhi-110062 (24.09.2007) CONTENTS Introduction Classification of Terpenoids Isolation of mono and sesquiterpenoids General properties of Terpenoids General methods of structure elucidation Terpenoids Citral Menthol Camphor Eugenol Keywords Terpenes‚ isoprene‚ citral‚ menthol‚ camphor and eugenol 1 Introduction There are many different classes of naturally occurring
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for each of the following compounds. a. NO2 CH3 b. c. CH3 d. NH2 H2N CH3 e. Ph C H3 C C CH2CH2CH3 Ph 3. For each molecule below‚ predict whether the molecule would be expected to show aromatic character or not. Explain your answer in each case. a. O N N H b. OH + O c. d. N O 4. Consider the data below to answer the following questions. base CH3 _ CH 2 Q and H2C CH3 base H2C QB _ CH2 Z ZB Conjugate bases QB and ZB are both
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FOUNDATION CHEMISTRY II CHM096 CHAPTER 1 ORGANIC CHEMISTRY PART I PREPARED BY SYED ABDUL ILLAH ALYAHYA BIN SYED ABD KADIR 1 TOPICS PART I 1.1 1.2 1.3 1.4 1.5 Introduction to Hydrocarbon and Functional Groups Alkanes and Cycloalkanes Isomerism and Overview of Organic Reaction Alkenes and Alkynes Alkyl Halides 2 TOPIC INTRODUCTION TO HYDROCARBON AND FUNCTIONAL GROUPS 3 1.1 Introduction to Hydrocarbon and Functional Groups What is Organic Chemistry?
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bubble and I was performed when observing them during English class. Chemical Composition and description The molecular formula for the composition of a bubble is 2 CH3(CH2)16CO2-Na+ + Mg2+ ----> (CH3(CH2)16CO2-)Mg2+ + 2 Na+. This is the type of bubble that is made through soap. However‚ CH3(CH2)16CO2-Na+ + HCl ----> CH3(CH2)16CO2H + Na+ + Cl- is made when fats and proteins are boiled Therefore these bubbles are considered natural. There are many unique characteristics of a bubble. Bubbles
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Engineering Chemistry III Prof. K. M. Muraleedharan Aromatic electrophilic substitution (Ar-SE) Reactions The special reactivity of aromatic systems towards electrophiles arises mainly from two factors: the presence of π electron density above and below the plane of the ring - making it nucleophilic‚ and the drive to regain the aromatic character by opting for substitution as opposed to a simple addition reaction. Preference towards addition reactions in the case of alkenes and substitution
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H (a) CH3 Br CH 3 (b) (c) Cl H3 C H (d) CH3 CH 3 H 3C H 2) write out the mechanism of the below reaction using curved arrow notation. Be sure to include every step in this reaction. (20 pts) 3. The following polymers were prepared using benzoyl peroxide as the initiator for free radical polymerization. Write out the chemical skeletal structures of the monomers used to prepare each polymer. (2 pts each‚ 8 pts total) O CH3 O CH2 C O H n
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Conversion of Alcohols to Alkyl Halides Title: Conversion of Alcohols to Alkyl Halides Abstract: In this experiment the conversion of alcohols to alkyl halides are investigated through reflux and simple distillation. These are common procedures used to separate substances. After the reflux and distillation is complete 13C NMR and IR spectrum is used to identify the product or products for each reaction: 1a‚ 1b‚ and 2. Every individual in the group was assigned either 1a (1-propanol) or 1b (2-pentanol)
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