ch03 Student: A. anti B. gauche C. skewed D. eclipsed 2. What is the IUPAC name of the compound shown in the following Newman projection?
|
|
|
- Bernadette Hill
- 5 years ago
- Views:
Transcription
1 ch03 Student: 1. Identify the conformation of butane shown below. A. anti B. gauche C. skewed D. eclipsed 2. What is the IUPAC name of the compound shown in the following Newman projection? A. 1,1,2,2-tetramethylethane B. 1,2-dimethylethane C. 2,2,3,3-tetramethylbutane D. 2,3-dimethylbutane 3. What is the IUPAC name of the compound shown below? A. 1,2,3-trimethylbutane B. 2,3-dimethylpentane C. 2,3,4-trimethylpentane D. 2-isopropylbutane 4. What is the dihedral (torsion) angle between the two bromine atoms in the following sawhorse drawing? A. 0 o B. 30 o C. 60 o D. 90 o 5. At room temperature, the various conformations of butane A. do not interconvert; only the anti form is present. B. do not interconvert, but all conformations are present. C. interconvert very slowly. D. interconvert very rapidly.
2 6. Which statement is correct concerning the relative stabilities of the two conformations, A and B, below? A. A is more stable. B. B is more stable. C. A and B are equal in stabilities. D. A and B are not equal in stability, but the preferred conformation cannot be determined by inspection. 7. Identify the spatial relationship of the two chlorine atoms. A. gauche B. anti C. eclipsed D. twist 8. Which statement is correct concerning the relative stabilities of the two conformations, A and B, below? A. A is more stable. B. B is more stable. C. A and B are equal in stabilities. D. A and B are not equal in stability, but the preferred conformation cannot be determined by inspection. 9. What is the IUPAC name of the following compound? A. trans-1,4-dimethylcyclohexane B. cis-1,4-dimethylcyclohexane C. trans-1,3-dimethylcyclohexane D. cis-1,3-dimethylcyclohexane 10. What is the dihedral (torsion) angle between the two bromine atoms in the wedge-and-dash drawing below? A. 60 o B. 90 o C. 120 o D. 180 o
3 11. Identify the relationship between the following two structures. A. constitutional isomers B. stereoisomers C. different conformations of the same compound D. identical 12. Predict which of the following constitutional isomers of C 5 H 10 would have the highest heat of combustion? A. methylcyclobutane B. cyclopentane C. cis-1,2-dimethylcyclopropane D. trans-1,2-dimethylcyclopropane 13. Identify the two atoms anti to the bromine. A. the equatorial H's on C-2 and C-6 B. the axial H's on C-2 and C-6 C. C-2 and C-6 D. C-3 and C Cyclohexane adopts the chair conformation rather than a planar structure because I. torsional strain is minimized. II. the C C C bond angles are close to o. III. there are no 1,3-diaxial interactions in a planar structure. A. only I B. only II C. I and II D. I, II, and III 15. Identify the relationship between the following two structures. A. constitutional isomers B. stereoisomers C. different conformations of the same compound D. identical
4 16. The most stable conformation of the compound shown has A. all methyl groups equatorial. B. equatorial methyl groups at C-1 and C-2, axial at C-4. C. equatorial methyl groups at C-1 and C-4, axial at C-2. D. equatorial methyl groups at C-2 and C-4, axial at C The most stable chair conformation of cis-1-tert-butyl-3-methylcyclohexane has A. both groups equatorial. B. both groups axial. C. the tert-butyl group equatorial and the methyl group axial. D. the tert-butyl group axial and the methyl group equatorial. 18. Identify the relationship of the two compounds below. A. identical B. constitutional isomers C. stereoisomers D. different conformations of the same compound
5 19. Identify the correct stereoisomer and the most stable conformation of the following compound. A. A B. B C. C D. D 20. Identify the relationship of the two compounds below. A. identical B. constitutional isomers C. stereoisomers D. different conformations of the same compound
6 21. What is the IUPAC name of the following compound? A. bicyclo[2.2.2]octane B. bicyclo[2.2.2]hexane C. bicyclo[3.3.3]octane D. bicyclo[3.3.3]hexane 22. Which statement below is true concerning the conversion of cis-1,4-dimethylcyclohexane to trans-1,4- dimethylcyclohexane? A. The conversion takes place by chair conformation ring-flipping. B. You cannot do the conversion without breaking covalent bonds. C. The conversions takes place by rotating the C(1) C(2) bond by 180. D. The conversion takes place through the skew boat conformations. 23. What is the IUPAC name of the following bicycloalkane? A. bicyclo[6.3.0]heptane B. bicyclo[4.1.0]hexane C. bicyclo[4.2.1]hexane D. bicyclo[4.1.0]heptane 24. Identify the relationship between the following two structures. A. identical B. different conformations of the same compound C. stereoisomers D. constitutional isomers
7 25. Which isomer of 1-tert-butyl-3-ethyl-5-methylcyclohexane below is thermodynamically the most stable? A. A B. B C. C D. D 26. What would the C C C bond angles be in a planar cyclohexane? A. 60 o B. 90 o C o D. 120 o 27. Identify the relationship between the following two Newman projections. A. identical B. stereoisomers C. different conformations of the same compound D. constitutional isomers
8 28. The IUPAC name of the following compound is A. cis-1,2-dimethylcyclohexane. B. trans-1,2-dimethylcyclohexane. C. 1,1-dimethylcyclohexane. D. cis-1,3-dimethylcyclohexane. 29. The following structure is A. cis-1,3-dimethylcyclohexane. B. cis-1,4-dimethylcyclohexane. C. trans-1,3-dimethylcyclohexane. D. trans-1,4-dimethylcyclohexane. 30. The sawhorse drawing of butane below is A. a gauche conformation. B. the anti conformation. C. the least stable eclipsed conformation. D. the most stable eclipsed conformation. 31. The sawhorse drawing of butane below is the A. least stable staggered conformation. B. most stable staggered conformation. C. least stable eclipsed conformation. D. most stable eclipsed conformation. 32. Which constitutional isomer of dimethylcyclohexane does not exhibit cis-trans isomerism? A. 1,1-dimethylcyclohexane B. 1,2-dimethylcyclohexane C. 1,3-dimethylcyclohexane D. 1,4-dimethylcyclohexane
9 33. What is the estimated dihedral angle between the two methyl groups on the structure shown below? A. 30 o B. 60 o C. 90 o D. 120 o 34. Which one of the following is not a constitutional isomer of trans-1,3-dimethylcyclopentane? A. 1,1-dimethylcyclopentane B. cis-1,2-dimethylcyclopentane C. ethylcyclopentane D. cis-1,3-dimethylcyclopentane 35. Which of the following best describes the conformation of propane shown below? A. C(1) - C(2) staggered and C(2) - C(3) staggered B. C(1) - C(2) staggered and C(2) - C(3) eclipsed C. C(1) - C(2) eclipsed and C(2) - C(3) staggered D. C(1) - C(2) eclipsed and C(2) - C(3) eclipsed 36. Which one of the following is the butane conformation shown below? A. gauche B. anti C. skew D. eclipsed
10 37. What is the correct IUPAC name of the following compound? A. cis-1-ethyl-2-methylcyclohexane B. trans-1-ethyl-2-methylcyclohexane C. cis-1-ethyl-6-methylcyclohexane D. trans-1-ethyl-6-methylcyclohexane 38. Which of the following can have cis-trans stereoisomers? A. 1,1-dimethylcyclobutane B. 1,3-dimethylcyclobutane C. 1,1,3-trimethylcyclobutane D. 1,1,3,3-tetramethylcylclobutane 39. The C C C bond angle in cyclopropane is A. 60 o. B. 90 o. C o. D. 120 o. 40. The most stable conformation of cis-4-methyl-1-tert-butylcyclohexane is a chair conformation with A. both the -CH 3 and -C(CH 3 ) 3 equatorial. B. both the -CH 3 and -C(CH 3 ) 3 axial. C. the -CH 3 equatorial and the -C(CH 3 ) 3 axial. D. the -CH 3 axial and -C(CH 3 ) 3 equatorial. 41. What is the IUPAC name of the compound shown below? A. cis-1,3-dimethylcyclohexane B. trans-1,3-dimethylcyclohexane C. cis-1,4-dimethylcyclohexane D. trans-1,5-dimethylcyclohexane 42. What is the IUPAC name of the compound shown below? A. cis-1,2-diethylcyclobutane B. trans-1,2-diethylcyclobutane C. cis-1,3-diethylcyclobutane D. trans-1,3-diethylcyclobutane
11 43. Which is more stable, cis-1,3-dimethylcyclohexane or trans-1,3-dimethylcyclohexane? A. trans-1,3-dimethylcyclohexane B. cis-1,3-dimethylcyclohexane C. They are equally stable. D. Stabilities of cis, trans stereoisomers cannot be compared. 44. What is the relationship between the following two structures? A. identical B. stereoisomers C. different conformations of the same compound D. constitutional isomers
12 1. B ch03 Key 2. D 3. B 4. C 5. D 6. C 7. B 8. B 9. A 10. D 11. C 12. C 13. D 14. C 15. B 16. D 17. A 18. C 19. B 20. A 21. A 22. B 23. D 24. C 25. A 26. D 27. C 28. A 29. C 30. A 31. C 32. A 33. B 34. D 35. C 36. A
13 37. B 38. B 39. A 40. D 41. B 42. C 43. A 44. D
14 Category # of Questions Carey Conformations ch03 Summary
CHEM 241 ALKANES AND CYCLOALKANES CHAP 3 ASSIGN H H
CEM 241 ALKANES AND CYCLOALKANES CAP 3 ASSIGN COMFORMATIONS AND cis-trans STEREOISOMERS 1. trans-1,2-dibromocyclohexane is represented by structure(s): D. II and III E. I and II 2. cis-1,3-dibromocyclohexane
STEREOCHEMISTRY OF ALKANES AND CYCLOALKANES CONFORMATIONAL ISOMERS
STEREOCHEMISTRY OF ALKANES AND CYCLOALKANES CONFORMATIONAL ISOMERS 1 CONFORMATIONAL ISOMERS Stereochemistry concerned with the 3-D aspects of molecules Rotation is possible around C-C bonds in openchain
Organic Chemistry. Alkanes (2)
For updated version, please click on http://ocw.ump.edu.my Organic Chemistry Alkanes (2) by Seema Zareen & Dr. Izan Izwan Misnon Faculty Industrial Science & Technology seema@ump.edu.my; iezwan@ump.edu.my
Chapter 3 AN INTRODUCTION TO ORGANIC COMPOUNDS NOMENCLATURE, PHYSICAL PROPERTIES, REPRESENTATION OF STRUCTURE AND
ORGANIC CHEMISTRY, 2 ND EDITION PAULA YURKANIS BRUICE Chapter 3 AN INTRODUCTION TO ORGANIC COMPOUNDS NOMENCLATURE, PHYSICAL PROPERTIES, AND REPRESENTATION OF STRUCTURE RAED M. AL-ZOUBI, ASSISTANT PROFESSOR
Organic Chemistry 1 Lecture 6
CEM 232 Organic Chemistry I Illinois at Chicago Organic Chemistry 1 Lecture 6 Instructor: Prof. Duncan Wardrop Time/Day: T & R, 12:30-1:45 p.m. January 28, 2010 1 Self Test Question Which form of strain
Alkanes. Introduction
Introduction Alkanes Recall that alkanes are aliphatic hydrocarbons having C C and C H bonds. They can be categorized as acyclic or cyclic. Acyclic alkanes have the molecular formula C n H 2n+2 (where
4. Stereochemistry of Alkanes and Cycloalkanes
4. Stereochemistry of Alkanes and Cycloalkanes Based on McMurry s Organic Chemistry, 6 th edition, Chapter 4 2003 Ronald Kluger Department of Chemistry University of Toronto The Shapes of Molecules! The
Chapter 2 Alkanes and Cycloalkanes; Conformational and Geometrical Isomerism
Chapter 2 Alkanes and Cycloalkanes; Conformational and Geometrical Isomerism Alkanes are hydrocarbons containing only single Bonds saturated General formula: CnH2n+2 Drawing chemical structures Several
Constitutional Isomers and Conformations of Alkanes & Cycloalkanes
Discovering Molecular Models #1: Constitutional Isomers Conformations of Alkanes & Cycloalkanes There are no additional tutorial or laboratory notes. Read bring your course notes, as they provide all of
Constitutional Isomers and Conformations of Alkanes & Cycloalkanes
Discovering Molecular Models #1: Constitutional Isomers Conformations of Alkanes & Cycloalkanes There are no additional tutorial or laboratory notes. Read bring your course notes, as they provide all of
Lab Workshop 1: Alkane and cycloalkane conformations
Lab Workshop : lkane and cycloalkane conformations ach student work group choose a Leader (reads activity out loud, poses questions to group), Facilitator (makes sure everyone is participating equally,
Conformational Analysis
onformational Analysis Free Rotation about arbon-arbon Single Bonds A carbon carbon single bond is formed by the end-on overlap of cylindrically symmetrical sp 3 orbitals. Therefore, attached carbon atoms
CHAPTER 4 HW: ALKANES
CAPTER 4 W: ALKANES CLASSES OF CARBON 1. assify each carbon atom pointed to below as 1, 2, 3 or 4. 2. Draw an alkane that contains only: 1 and 4 carbon atoms 2 carbon atoms 1 and 2 carbon atoms 1 and 3
When I lecture we will add more info, so leave spaces in your notes
Title and Highlight Right side: NOTES! Topic: EQ: Date Date NOTES: Write out the notes from my website. Use different types of note-taking methods to help you recall info (different color pens/highlighters,
Organic Chemistry, Fifth Edition
Organic Chemistry, Fifth Edition Janice Gorzynski Smith Modified by Dr. Juliet Hahn Chapter 4 Alkanes Copyright 2017 McGraw-Hill Education. All rights reserved. No reproduction or distribution without
Full file at
Chapter 2 - Alkanes: The Nature of Organic Compounds 1. Which of the following functional group classifications do not contain oxygen? A. ether B. thiol C. aldehyde D. ester E. amide 2. To which functional
Conformational Isomers. Isomers that differ as a result of sigma bond rotation of C-C bond in alkanes
Conformational Isomers Isomers that differ as a result of sigma bond Isomers that differ as a result of sigma bond rotation of C-C bond in alkanes Bond Rotation and Newman Projections As carbon-carbon
(1) Recall the different isomers mentioned in this tutorial.
DAT Organic Chemistry - Problem Drill 08: Conformational Analysis Question No. 1 of 10 Question 1. Isomers that differ by rotation about a single bond are called: Question #01 (A) Stereoisomers (B) Constitutional
Organic Chemistry 1 CHM 2210 Exam 2 (October 10, 2001)
Organic Chemistry 1 CM 2210 Exam 2 (October 10, 2001) Name (print): _ Signature: _ Student ID Number: _ There are 10 multiple choice problems (4 points each) on this exam. Record the answers to the multiple
CHAPTER 4 HW SOLUTIONS: ALKANES
CAPTER W SOLUTONS: ALKANES CATEGORZATONS. assify each carbon atom pointed to below as,, or.. Draw an alkane that contains only: and carbon atoms carbon atoms and carbon atoms and carbon atoms or or or
Organic Chemistry, Second Edition. Janice Gorzynski Smith University of Hawai i. Chapter 4 Alkanes
Organic Chemistry, Second Edition Janice Gorzynski Smith University of Hawai i Chapter 4 Alkanes Prepared by Rabi Ann Musah State University of New York at Albany Copyright The McGraw-Hill Companies, Inc.
Chapters 1, 2, & 3. CHAPTER 3 *** 3-D Molecular Model Set Needed*** Saturated Hydrocarbons (AKA: Alkanes) (AKA:Paraffins)
Sevada Chamras, Ph.D. Glendale Community College Chemistry 105 Exam. 1 Lecture Notes Chapters 1, 2, & 3 CAPTER 3 *** 3-D Molecular Model Set Needed*** Saturated ydrocarbons (AKA: Alkanes) (AKA:Paraffins)
1. Multiple Choice Questions (15 points) Please circle the best answer to each question. Lone pairs are generally not shown.
Page 2 Name _ANSWER KEY_ 1. Multiple Choice Questions (15 points) Please circle the best answer to each question. Lone pairs are generally not shown. (i) The formal charges on the nitrogen and oxygen atoms
Chapter 4 Alkanes: Nomenclature, Conformational Analysis, and an Introduction to Synthesis"
Chapter 4 Alkanes: Nomenclature, Conformational Analysis, and an Introduction to Synthesis" Alkanes = saturated hydrocarbons" Simplest alkane = methane C 4" " We can build additional alkanes by adding
Why am I learning this, Dr. P?
Chapter 4- Organic Compounds: Cycloalkanes and their Stereochemistry Ashley Piekarski, Ph.D. Why am I learning this, Dr. P? Cyclic compounds are commonly encountered in all classes of biomolecules: Proteins
Chapter 7 Cyclic Compounds. Stereochemistry of Reactions
Instructor Supplemental Solutions to Problems 2010 Roberts and Company Publishers Chapter 7 Cyclic Compounds. Stereochemistry of Reactions Solutions to In-Text Problems 7.3 Following the procedure in the
unsaturated (one or more pi bonds) alkanes alkenes alkynes benzene naming alkanes C 4 H 10 C 5 H 12 C 6 H 14 C 7 H 16 C 8 H 18 C 9 H 20 C 10 H 22
hapter 4: Alkanes and ycloalkanes [Sections: 4.1-4.14] Basic Organic ompound Nomenclature hydrocarbons: comprised of just carbon and hydrogen saturated (no pi bonds) unsaturated (one or more pi bonds)
Chemistry 3719, Fall 2003 Exam 1 Name:
Chemistry 3719, Fall 2003 Exam 1 Name: This exam is worth 100 points out of a total of 600 points for Chemistry 3719/3719L. You have 50 minutes to complete the exam and you may use molecular models as
Ch.4: Alkanes and Cycloalkanes. Dr. Srood Omer Rashid 2
Srood O. Rashid 1 Ch.4: Alkanes and Cycloalkanes Dr. Srood Omer Rashid 2 4.1 Classes of Hydrocarbons Hydrocarbons contain only carbon and hydrogen. Saturated hydrocarbons contain only carbon carbon single
Organic Chemistry, Second Edition. Janice Gorzynski Smith University of Hawai i. Chapter 4 Alkanes
Organic Chemistry, Second Edition Janice Gorzynski Smith University of Hawai i Chapter 4 Alkanes Prepared by Rabi Ann Musah State University of New York at Albany Copyright The McGraw-Hill Companies, Inc.
Chemistry 123: Physical and Organic Chemistry Topic 1: Organic Chemistry
Topic 1: Mechanisms and Curved Arrows etc Reactions of Alkenes:.Similar functional groups react the same way. Why? Winter 2009 Page 73 Topic 1: Mechanisms and Curved Arrows etc Reactivity:.Electrostatic
1. The barrier to rotation around the C-C bonds for 2-methylpropane and 2,2-dimethylpropane are shown below.
1. The barrier to rotation around the C-C bonds for 2-methylpropane and 2,2-dimethylpropane are shown below. E Rot = 14.2 kj/mol E Rot = 19.6 kj/mol a. Why does the potential energy of a molecule increase
H C H H. sawhorse projection
Alkanes arbons are sp 3 hybridized. Bonds are σ-bonds. - bonds ~ 1.54Å; - bonds ~ 1.10Å. Bond angles ~ 109 o. Ethane sawhorse projection Newman projection Different arrangements of atoms in a molecule
Chemistry 3719 Fall 2000 Exam 1 Name: KEY. Anti Gauche Eclipsed 1 Eclipsed 2
hemistry 3719 Fall 2000 Exam 1 Name: KEY This exam is worth 100 points and you have 50 minutes to complete it. You may use molecular models to help you with any of the problems. Good luck. 1. (8 pts) 1,2-Dibromoethane
Class Activity 5A. Conformations of Alkanes Part A: Acyclic Compounds
Class Activity 5a Conformations of Alkanes Part A: Acyclic Compounds 1 Model 1: Isomers Class Activity 5A Conformations of Alkanes Part A: Acyclic Compounds C C O C C C C C C C O O A B C wedge, bond coming
1. Problem 3-5 Use ChemDraw to generate the nine isomers of C 7 H 16.
Copyright 2002 Prentice-Hall, Inc. All rights reserved. Chapter 3 - Structure and Stereochemistry of Alkanes 1. Problem 3-5 Use ChemDraw to generate the nine isomers of C 7 H 16. Hint: Begin with a chain
Exam 1 Chem 3045x Monday, October 1, 2001
Exam 1 Chem 3045x Monday, October 1, 2001 Instructions: This is a closed book examination. Please print your name and social security number on the front page of the examination. Be sure to allot your
ALKANES STRUCTURE, PROPERTIES, AND SYNTHESIS A STUDENT WHO HAS MASTERED THE MATERIAL IN THIS SECTION SHOULD BE ABLE TO:
ALKANES STRUCTURE, PROPERTIES, AND SYNTESIS A STUDENT WO AS MASTERED TE MATERIAL IN TIS SECTION SOULD BE ABLE TO: 1. Predict relative boiling points of alkanes, in comparison with other alkanes and with
MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.
MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) Which of the following is a tertiary amine? 1) A) B) C) D) E) D 2) There are 8 isomers that have
Practice Hour Examination # 1-2
CHEM 346 Organic Chemistry I Fall 2013 Practice Hour Examination # 1-2 Solutions Key Page 1 of 12 CHEM 346 Organic Chemistry I (for Majors) Instructor: Paul J. Bracher Practice Hour Examination # 1-2 Monday,
CHEM Lecture 4
CEM 494 Special Topics in Chemistry Illinois at Chicago CEM 494 - Prof. Duncan Wardrop October 1, 2012 Course Website http://www.chem.uic.edu/chem494 Syllabus Course Policies Other handouts Announcements
Only by constructing a model does one at first appreciate fully how. cyclohexane can exist in a non-planar, beautifully symmetrical, and apparently
Text Related to Segment 5.05 2002 Claude E. Wintner Only by constructing a model does one at first appreciate fully how cyclohexane can exist in a non-planar, beautifully symmetrical, and apparently entirely
Chapter 4: Alkanes and Cycloalkanes
1. Nomenclature hapter 4: lkanes and ycloalkanes hydrocarbons: comprised of just carbon and hydrogen saturated (no pi bonds) [Sections: 4.1-4.14] unsaturated (one or more pi bonds) alkanes alkenes alkynes
Química Orgânica I TP1B
Química Orgânica I TP1B Nome Nº Curso Nota MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) Which of the following is a tertiary amine? A) 1) B)
Organic Chemistry Unit #2: Structure of Alkanes, Cycloalkanes, and Alkenes
Organic hemistry Unit #2: Structure of Alkanes, ycloalkanes, and Alkenes Bring your model kits to class we will to learn to use them! Objectives: by the end of this unit, you should be able to... Interconvert
Chem 341 Organic Chemistry I Lecture Summary 10 September 14, 2007
Chem 34 Organic Chemistry I Lecture Summary 0 September 4, 007 Chapter 4 - Stereochemistry of Alkanes and Cycloalkanes Conformations of Cycloalkanes Cyclic compounds contain something we call Ring Strain.
Chemistry 335 Supplemental Slides: Interlude 2
Interlude 2: Shapes of Cyclic Molecules Recall from 2 nd year: - Rotation around C C single bonds is generally fast. - This leads to a variety of different conformers for any given molecule. - To evaluate
A. Structure and Nomenclature. Introduction of Organic Chemistry. Unit 2: Structure of Alkanes, Cycloalkanes, and Alkenes
Organic hemistry #2 1 Introduction of Organic hemistry. Unit 2: Structure of Alkanes, ycloalkanes, and Alkenes Bring your model kits to class we will to learn to use them! Objectives: by the end of this
Molecules Are NOT Static Structures!
Objective 6 Draw conformational isomers of chains (staggered, eclipsed) and rings (chair axial/equatorial, boat, cis/trans) using skeletal structures, Newman projections, wedge-dash, sawhorse. Identify
1 Basic Organic Nomenclature Two kinds: Common or trivial names IUPAC (International Union of Pure and Applied Chemists!), systematic naming system
Alkanes Introduction to 3D Structures Alkanes are hydrocarbons, i.e. organic molecules that contain only carbon () and hydrogen () atoms Alkanes are unsaturated (have no double/triple bonds), but may have
Chapter 2: An Introduction to Organic Compounds
Chapter : An Introduction to Organic Compounds I. FUNCTIONAL GROUPS: Functional groups with similar structure/reactivity may be "grouped" together. A. Functional Groups With Carbon-Carbon Multiple Bonds.
Chapter 2. Alkanes and Cycloalkanes; Conformational and Geometrical Isomerism
Chapter 2 Alkanes and Cycloalkanes; Conformational and Geometrical Isomerism Hydrocarbons are compounds that contain only carbon and hydrogen. There are three main classes of hydrocarbons, based on the
LECTURE 3 STRUCTURE AND STEREOCHEMISTRY OF ALKANES
LECTURE 3 STRUCTURE AND STEREOCEMISTRY OF ALKANES 1. Molecular Formulas. Alkanes are hydrocarbons, which have only sp 3 -hybridized carbon atoms, i.e. carbon atoms that form only σ-bonds. Such hydrocarbons,
Organic Chemistry 1 Lecture 5
CEM 232 Organic Chemistry I Illinois at Chicago Organic Chemistry 1 Lecture 5 Instructor: Prof. Duncan Wardrop Time/Day: T & R, 12:30-1:45 p.m. January 26, 2010 1 Self Test Question Which of the following
Chapter 3: Alkanes and Cycloalkanes
Chapter 3: Alkanes and Cycloalkanes 55 Chapter 3: Alkanes and Cycloalkanes Problems 3.1 Do the structural formulas in each pair represent the same compound or constitutional isomers? Constitutional isomers
Introduction to organic compounds
Chapter 2 Introduction to organic compounds Nomenclature Physical properties Conformation Organic compounds Ch 2 #2 in Organic Chemistry 1 hydrocarbons [R] alkanes alkenes alkynes alkyl halides [RX] ethers
B. A transition state represents a maximum on the reaction path diagram and can be isolated.
Practice Hour Exam 2, Chemistry 2210, Organic Chemistry I 1. The most stable carbocation is: 2. Which of the following statements is true of transition states? A. A transition state represents a minimum
Chapter 3: Alkanes and Cycloalkanes
Brown 5e ISV SM 3-1 Chapter 3: Alkanes and Cycloalkanes Problems 3.1 Do the structural formulas in each pair represent the same compound or constitutional isomers? Constitutional isomers have the same
Chemistry 121(01) Winter 2014
Chemistry 121(01) Winter 2014 Introduction to Organic Chemistry and Biochemistry Instructor Dr. Upali Siriwardane (Ph.D. Ohio State) E-mail: upali@latech.edu Office: 311 Carson Taylor Hall ; Phone: 318-257-4941;
Chemistry 3719, Fall 2002 Exam 1 Name:
Chemistry 3719, Fall 2002 Exam 1 Name: This exam is worth 100 points out of a total of 600 points for Chemistry 3719/3719L. You have 50 minutes to complete the exam and you may use molecular models as
INTRODUCTION TO ORGANIC CHEMISTRY: ALKANES
P a g e 1 Chapter 12 INTRODUCTION TO ORGANIC CHEMISTRY: ALKANES Organic chemistry: The study of carbon compounds. Carbon is tetravalent; it always forms four bonds. Organic molecules have covalent bonds.
Exam Analysis: Organic Chemistry, Midterm 1
Exam Analysis: Organic Chemistry, Midterm 1 1) TEST BREAK DOWN: There are three independent topics covered in the first midterm, which are hybridization, structure and isomerism, and resonance. The test
2: Alkanes and Cycloalkanes
2: Alkanes and Cycloalkanes Preview 2-3 2.1 Alkanes 2-3 Structures of Alkanes (2.1A) 2-3 Kekulé, Electron-Dot and Three-Dimensional Structures Condensed Structural Formulas Molecular Formulas Structural
Test Bank for Organic Chemistry 7th Edition by Bruice
Test Bank for Organic Chemistry 7th Edition by Bruice Chapter 3 An Introduction to Organic Compounds 1) Which of the following is a tertiary amine? A) B) C) D) E) Answer: E Section: 3-1 2) There are 8
Organic Chemistry. for Students of Medicine and Biology 大学化学 III 和大学化学 III(2)
Organic Chemistry for Students of Medicine and Biology 大学化学 III 和大学化学 III(2) March 4, 2015 Refining of petroleum, a major natural source of alkanes Chapter 4 Alkanes and Cycloalkanes ( 烷烃和环烷烃 ) March 3,
CHAPTER 12: SATURATED HYDROCARBONS
CHAPTER 12: SATURATED HYDROCARBONS MULTIPLE CHOICE 1. Which of the following statements concerning organic compounds is correct? Organic compounds are found only in non-living systems. b. Organic compounds
Chemistry 2030 Survey of Organic Chemistry Fall Semester 2015 Dr. Rainer Glaser
Chemistry 2030 Survey of Organic Chemistry Fall Semester 2015 Dr. Rainer Glaser Examination #1 Bonding, Alkanes, Alkenes & Alkynes Thursday, September 17, 2015, 8:25 9:15 am Question 1. Atomic Structure,
ORGANIC - EGE 5E CH. 5 - ALKANES AND CYCLOALKANES.
!! www.clutchprep.com CONCEPT: ALKANE NOMENCLATURE Before 1919, chemists literally had to memorize thousands of random (common) chemical names. IUPAC naming provides a systematic method to give every chemical
William H. Brown Christopher S. Foote. Eric Anslyn. Chapter 2. William H. Brown Beloit College
William. Brown Christopher S. Foote Brent L. Iverson Eric Anslyn http://academic.cengage.com/chemistry/brown Chapter 2 Alkanes and Cycloalkanes lk William. Brown Beloit College 2-1 Structure ydrocarbon:
CHEMISTRY MIDTERM # 1 answer key September 29, 2005
CEMISTRY 313-01 MIDTERM # 1 answer key September 29, 2005 Statistics: Average: 75 pts (75%); ighest: 99 pts (99%); Lowest: 31 pts (31%) Number of students performing at or above average: 28 (57%) Number
Alkana. Dept Teknik Kimia FTUI
Alkana C n 2n+2 Dept Teknik Kimia FTUI ydrocarbons Aliphatic Aromatic ydrocarbons Aliphatic Aromatic Alkana Alkena Alkuna ydrocarbons Aliphatic Alkanes are hydrocarbons in which all of the bonds are single
Alkanes 3/27/17. Hydrocarbons: Compounds made of hydrogen and carbon only. Aliphatic (means fat ) - Open chain Aromatic - ring. Alkane Alkene Alkyne
Alkanes EQ 1. How will I define Hydrocarbons? 2. Compare and contrast the 3 types of hydrocarbons (Alkanes, alkenes, alkynes). Hydrocarbons: Compounds made of hydrogen and carbon only. Aliphatic (means
Department of Chemistry SUNY/Oneonta. Chem Organic Chemistry I. Examination #2 - October 18, 2004 ANSWERS
Department of hemistry SUNY/Oneonta hem 221 - Organic hemistry I Examination #2 - October 18 2004 ANSWERS INSTRUTIONS This examination is in multiple choice format; the questions are in this Exam Booklet
Chapter 3. Organic Compounds: Alkanes and Their Stereochemistry
Chapter 3. Organic Compounds: Alkanes and Their Stereochemistry Functional Group: Be able to identify and name any of the functional groups listed on Table 3.1, pages 76-77. Summary of important functional
First Name MIKE. Chem 30A Winter 2005 MIDTERM #1 (50 Min) Weds February 2nd
Last First MI Student ID Number: Total Score Circle the name of your TA: MIKE ROB Discussion Section Day: Time: / 00 Chem 30A Winter 2005 MIDTERM # (50 Min) Weds February 2nd INTERPRETATION OF TE QUESTIONS
comes forward STEREOISOMERS ISOMERS THAT ARE DIFFERENT BECAUSE OF THEIR ORIENTATION IN SPACE
STEREOCEMISTRY SOME DEFINITIONS WIT EXAMPLES PRESENTING STEREO STRUCTURES CIRAL CENTER REPRESENTAITON goes back goes back in the plane of the paper comes forward comes forward DOTTED LINE - WEDGE goes
1,2-Dienes: 1,2-Dienes have two double bonds both joined to a central carbon which is often represented by a dot: R 2 R 1 R 4
LETURE 2 Alkenes: In alkenes we make the σ-bonds between carbon atoms by overlapping sp 2 hybrid orbitals which have been produced by the hybridisation of one s and only two p orbitals. These sp 2 hybrids
Chapter 4 - Nomenclature and Conformations of Alkanes and Cycloalkanes 1
Andrew Rosen Chapter 4 - Nomenclature and Conformations of Alkanes and Cycloalkanes 1 4.1 - Introduction to Alkanes and Cycloalkanes - Alkanes are hydrocarbons with all carbon-carbon single bonds - Alkenes
9. Stereochemistry: Introduction to Using Molecular Models
9. Stereochemistry: Introduction to Using Molecular Models The first part of this document reviews some of the most important stereochemistry topics covered in lecture. Following the introduction, a number
Chapter 2. Skeletal Structures
Chapter 2 Basic nomenclature/definition of alkanes Nomenclature of alkyl groups Nomenclature of more complicated alkanes Nomenclature & structure of alkane derivatives: Alkyl halides Ethers Alcohols Amines
Copyright 2009 James K Whitesell
Copyright 2009 James K Whitesell 5-1 These two molecules, cyclopropylcyclopentane and cyclobutycyclobutane have the same number of carbon and hydrogen atoms and thus they are constitutional isomers. 5-2
This exercise is to be completed during your lab period during the week of October 24-30, 2018.
MOLECULAR MODELLING EXERCISE II This exercise is to be completed during your lab period during the week of October 24-30, 2018. You will need to continue to know and understand, and be able to apply, the
Alkanes and Cycloalkanes
03 Alkanes and Cycloalkanes The burners of gas grills are fueled by liquefied petroleum gas (LPG). LPG contains mostly propane, which is how their containers became known as propane tanks, but LPG also
Organic Nomenclature
University of Puget Sound Department of Chemistry Chem 111 Spring, 2010 Organic Nomenclature LEARNING GOALS AND ASSESSMENTS 1. Be familiar with the structure and nomenclature of organic compounds. a. Identify
16.1 Draw Newman projections for these staggered and three eclipsed conformations of 1, 2 - dichlorobutane as viewed downt he central C-C bond.
CAPTER 16 Practice Exercises 16.1 Draw Newman projections for these staggered and three eclipsed conformations of 1, 2 - dichlorobutane as viewed downt he central C-C bond. 16.3 (a) The more stable conformation
Chm 222 Spring 2015, Exercise Set 5 The Stereochemistry Pillar
Chm 222 Spring 2015, Exercise Set 5 The Stereochemistry Pillar Mr. Linck c Boniface Beebe Productions January 19, 2016 Version 3.0. NOTE: An asterisk in the problem title indicates that it is a continuing
Chemistry 2030 Survey of Organic Chemistry Fall Semester 2013 Dr. Rainer Glaser
Chemistry 2030 Survey of Organic Chemistry Fall Semester 2013 Dr. Rainer Glaser Examination #1 Bonding, Alkanes, Alkenes & Alkynes Thursday, September 12, 2013, 8:00 8:50 am Question 1. Atomic Structure
A. They all have a benzene ring structure in the molecule. B. They all have the same molecular formula. C. They all have carbon and hydrogen only
Ch 21 G12 CoreI- Choose the best answer, then transfer your answers to page (1) [32 marks; 2 each] 1. What characteristic do all aromatic hydrocarbons share? A. They all have a benzene ring structure in
EXAMINATION 1 Chemistry 3A
1 EXAMINATION 1 Chemistry 3A Name: Key Print first name before second! Use capital letters! SID #: Peter Vollhardt February 18, 2016 GSI (if you are taking Chem 3AL): Please provide the following information
Growth in Known Compounds
Growth in Known ompounds 70,000,000 60,000,000 50,000,000 54,675,250 63,175,733 50,000,000 40,000,000 29,988,150 30,000,000 20,000,000 10,000,000 0 50,000 144,000 300,000 11,669,292 18,000,000 1892 1910
Chem 240. Alkane. Chapter 2. Dr. Seham ALTERARY nd semester
Chem 240 Chapter 2 Alkane Dr. Seham ALTERARY 1439-1440 2018-2019 2 nd semester Chapter outlines ydrocarbons hierarchy & chemical formulas. Isomersim. Common name & IUPAC naming system. Nomenclature of
Chemistry 333. Examination #1
Chemistry 333 Examination #1 June 19, 2006 Professor Charonnat Be certain that your examination has six (6) pages including this one. Put your name on each page of this examination booklet. By putting
Chemistry EXAM 1 (Fall Dr. Robertson)
Chemistry 210 -- EXAM 1 (Fall 2003 - Dr. Robertson) ***** BEFORE BEGINNING EXAM, PLEASE READ THE FOLLOWING ***** The exam consists of this cover sheet and fourteen problems, worth the amounts indicated.
1. Discuss the the relative conformation analysis of 1,2-dimethylcyclohexane. H H H 3 C H H CH H 3 3 C H H
1. Discuss the the relative conformation analysis of 1,2-dimethylcyclohexane. If we consider cis isomer of 1,2-dimethylcyclohexane, the e,a and a,e both conformer is optically active ads no element of
We can review the concepts we have dealt with above by considering as a
Text Related to Segment 5.06 2002 Claude E. Wintner We can review the concepts we have dealt with above by considering as a final exercise the dimethylcyclohexanes. First treating the problem as regards
CHEMISTRY MIDTERM # 1 answer key October 05, 2010
CEMISTRY 313-03 MIDTERM # 1 answer key ctober 05, 2010 Statistics: Average: 73 pts (73%); ighest: 99 pts (99%); Lowest: 31 pts (31%) Number of students performing at or above average: 61 (52%) Number of
Conformations. Lecture 15. Hydrocarbon Families (carbon and hydrogen only) Aliphatics and Alicyclics. Aromatics. Alkanes Alkenes Alkynes.
Alkanes represent one of four hydrocarbon families (having only carbon and hydrogen). These families include alkanes, alkenes, alkynes, and aromatics. The alkane family will provide our main examples for
Chemistry 2030 Survey of Organic Chemistry Fall Semester 2017 Dr. Rainer Glaser
Chemistry 2030 Survey of Organic Chemistry Fall Semester 2017 Dr. Rainer Glaser Examination #1 Bonding, Alkanes, Alkenes & Alkynes Thursday, September 14, 2017, 8:25 9:15 am Name: Answer Key Question 1.
STRUCTURE. Dr. Sheppard CHEM 2411 Spring 2015
STRUCTURE Dr. Sheppard CHEM 2411 Spring 2015 Klein (2nd ed.) sections 1.8-1.10, 1.12-1.13, 2.7-2.12, 3.2, 3.4-3.5, 3.8-3.9, 4.6-4.13, 4.14, 8.5, 15.16, 21.3 Topics Structure Physical Properties Hybridization
Alkanes and Cycloalkanes
Alkanes and Cycloalkanes Alkanes molecules consisting of carbons and hydrogens in the following ratio: C n H 2n+2 Therefore, an alkane having 4 carbons would have 2(4) + 2 hydrogens, which equals 10 hydrogens.