CHEM 343 Principles of Organic Chemistry II Summer Instructor: Paul J. Bracher. Exam # 1. Tuesday, July 8 th, :00 9:15 a.m.
|
|
|
- Kelley Robertson
- 7 years ago
- Views:
Transcription
1 CHEM 343 Principles of rganic Chemistry II Summer 2014 Exam # 1 Solutions Key Page 1 of 7 CHEM 343 Principles of rganic Chemistry II Summer 2014 Instructor: Paul J. Bracher Exam # 1 Tuesday, July 8 th, :00 9:15 a.m. (in class) Student Name (Printed) Student Signature Solutions N/A Instructions & Scoring Please write your answers on the official answer sheet. No answers marked in this booklet will be graded. You may use a single sheet of notes and a model kit. You may not collaborate with others. Your exam answer sheet may be photocopied. Problem Points Earned Points Available I 35 II 24 III 21 IV 20 TTAL 100 Questions, Required Information, Supplementary Information
2 CHEM 343 Principles of rganic Chemistry II Summer 2014 Exam # 1 Solutions Key Page 2 of 7 Problem I. Multiple choice (35 points total; +5 points for a correct answer, +2 points for an answer intentionally left blank, and 0 points for an incorrect answer). For each question, select the best answer of the choices given. Write the answer, legibly, in the space provided on the answer sheet. (1) C The yield of the following reaction will be poor for what reason(s)? (a) amino groups are meta directors, not ortho/para directors (b) these conditions are prone to multiple substitutions (overalkylation) (c) the amino group will form a complex with AlCl 3 (d) aniline is a poor nucleophile for electrophilic aromatic substitutions (e) all of the above (2) A Which of the following adjectives best describes the electronic structure of the methyltropylium cation (A)? (a) aromatic (b) antiaromatic (c) nonaromatic (d) pseudoaromatic (e) radical
3 CHEM 343 Principles of rganic Chemistry II Summer 2014 Exam # 1 Solutions Key Page 3 of 7 (3) D Which of the following statements about compound B is true? (a) the compound is aromatic (b) the compound is antiaromatic (c) the nitrogen atom is sp 2 hybridized (d) the nitrogen atom is sp 3 hybridized (e) none of the above statements is true (4) B Which of the following structures is not a valid resonance form to describe the intermediate formed when phenol reacts with Br 2.
4 CHEM 343 Principles of rganic Chemistry II Summer 2014 Exam # 1 Solutions Key Page 4 of 7 (5) B Which of the following statements about the following reaction is true? (a) product C will be produced in higher yield than D (b) the rate of the reaction would increase if 2-methylcyclopentadiene were used in place of cyclopentadiene (c) the reaction produces another enantiomer of C that is not shown (d) all of the above (e) none of the above (6) C What is the major product expected of the sequence of reactions below?
5 CHEM 343 Principles of rganic Chemistry II Summer 2014 Exam # 1 Solutions Key Page 5 of 7 (7) D Which of the following statements accurately describes the bonding in 1-butene (E)? (a) the C2 C3 bond is shorter than the C3 C4 bond (b) the C3 carbon is sp 3 -hybridized (c) the π* molecular orbital of the compound is empty (d) all of the above (e) none of the above Problem II. Mechanism (24 points). (1) (16 points) Draw a sensible mechanism for the following reaction. Remember to use proper curved arrow notation to account for the movement of electrons in the making and breaking of bonds. Show all significant resonance forms that account for the stability of the intermediates in the reaction.
6 CHEM 343 Principles of rganic Chemistry II Summer 2014 Exam # 1 Solutions Key Page 6 of 7 (2) (8 points) Will the reaction above become faster or slower if the fluorine atom is replaced with bromine? Explain why in no more than two sentences. The reaction will be slower with bromine. The rate-determining step of this sort of nucleophilic aromatic substitution reaction is the attack of the methoxide nucleophile, not the step where the fluorine is lost. So, even though fluoride ion (F ) is a worse leaving group than bromide ion (Br ), the reaction will proceed faster with the fluoro compound because fluorine is more electronegative, which makes the ring a better electrophile for attack by methoxide in the rate-determining step. Problem III. Reactions (21 points). The following chemical reactions are missing their starting materials, products, or reagents. Write the missing compounds into the empty boxes below, as appropriate. For missing products, draw the single organic product that you expect to be produced in the highest yield among all of the possibilities. In some cases, there will be more than one correct answer that will merit full credit. (1) (6 points) (2) (7 points) (3) (8 points)
7 CHEM 343 Principles of rganic Chemistry II Summer 2014 Exam # 1 Solutions Key Page 7 of 7 Problem IV. Synthesis (20 points). Design an efficient synthesis of compound F from the indicated starting materials and any other reagents you wish. Assume that your boss has a passionate hatred of overalkylation and insists that under no circumstances are you allowed to use Friedel Crafts alkylation reactions (but acylations are K). Note: You can accomplish this synthesis in five steps. CH HC F Cl Zn(Hg) AlCl 3 HCl Cl AlCl 3 Zn(Hg) HCl KMn 4 CH HC Note: Friedel Crafts alkylation is generally a poor method for the functionalization of aromatic rings due to the likelihood of overalkylation. With that said, you can see that using Friedel Crafts acylation to avoid Friedel Crafts alkylation can be quite tedious.
CHEM 211 CHAPTER 16 - Homework
CHEM 211 CHAPTER 16 - Homework SHORT ANSWER Consider the Friedel-Crafts alkylation reaction below to answer the following question(s): 1. Refer to the reaction above. Draw the structure of the electrophilic
Electrophilic Aromatic Substitution Reactions
Electrophilic Aromatic Substitution Reactions, Course Notes Archive, 1 Electrophilic Aromatic Substitution Reactions An organic reaction in which an electrophile substitutes a hydrogen atom in an aromatic
REACTIONS OF AROMATIC COMPOUNDS
A STUDENT SHOULD BE ABLE TO: REACTIONS OF AROMATIC COMPOUNDS 1. Predict the product(s) of Electrophilic Aromatic Substitution (EAS), Nucleophilic Aromatic Substitution (S N Ar) and Elimination-Addition
Electrophilic Aromatic Substitution
Electrophilic Aromatic Substitution Electrophilic Aromatic Substitution: a reaction in which the hydrogen atom of an aromatic ring is replaced as a result of an electrophilic attack on the aromatic ring
Benzene Benzene is best represented as a resonance hybrid:
Electrophilic Aromatic Substitution (EAS) is a substitution reaction usually involving the benzene ring; more specifically it is a reaction in which the hydrogen atom of an aromatic ring is replaced as
Self Assessment_Ochem I
UTID: 2013 Objective Test Section Identify the choice that best completes the statement or answers the question. There is only one correct answer; please carefully bubble your choice on the scantron sheet.
AROMATIC COMPOUNDS A STUDENT SHOULD BE ABLE TO:
A STUDENT SHULD BE ABLE T: ARMATIC CMPUNDS 1. Name benzene derivatives given the structures, and draw the structures given the names. This includes: Monosubstituted benzenes named as derivatives of benzene:
RESONANCE, USING CURVED ARROWS AND ACID-BASE REACTIONS
RESONANCE, USING CURVED ARROWS AND ACID-BASE REACTIONS A STUDENT SHOULD BE ABLE TO: 1. Properly use curved arrows to draw resonance structures: the tail and the head of every arrow must be drawn in exactly
Name. Department of Chemistry and Biochemistry SUNY/Oneonta. Chem 322 - Organic Chemistry II Examination #2 - March 14, 2005 ANSWERS
Name INSTRUTINS --- Department of hemistry and Biochemistry SUNY/neonta hem 322 - rganic hemistry II Examination #2 - March 14, 2005 ANSWERS This examination has two parts. Part I is in multiple choice
Resonance Structures Arrow Pushing Practice
Resonance Structures Arrow Pushing Practice The following is a collection of ions and neutral molecules for which several resonance structures can be drawn. For the ions, the charges can be delocalized
4/18/2011. 9.8 Substituent Effects in Electrophilic Substitutions. Substituent Effects in Electrophilic Substitutions
9.8 Substituent effects in the electrophilic substitution of an aromatic ring Substituents affect the reactivity of the aromatic ring Some substituents activate the ring, making it more reactive than benzene
ALKENES AND ALKYNES REACTIONS
A STUDENT SHULD BE ABLE T: ALKENES AND ALKYNES REACTINS 1. Given the starting materials and reaction conditions, predict the products of the following reactions of alkenes and alkynes. Regioselective Markovnikov
Conjugation is broken completely by the introduction of saturated (sp3) carbon:
Chapter 16 Conjugation, resonance, and dienes Conjugation relies on the partial overlap of p-orbitals on adjacent double or triple bonds. A common conjugated system involves 1,3-dienes, such as 1,3-butadiene.
Q.1 Draw out some suitable structures which fit the molecular formula C 6 H 6
Aromatic compounds GE 1 BENZENE Structure Primary analysis revealed benzene had an... empirical formula of and a molecular formula of 6 6 Q.1 Draw out some suitable structures which fit the molecular formula
CHEM 322 Organic Chemistry II - Professor Kathleen V. Kilway. CHAPTER 14 Substitution Reactions of Aromatic Compounds
CHEM 322 Organic Chemistry II - Professor Kathleen V. Kilway "Organic Chemistry" by Maitland Jones, 4 th edition Chapter 14 Homework: 1, 2, 5, 7, 13, 19, 20, 23, 26, 27, 28, 30, 31, 34, 35, 36, 41, 46,
20.2 Chemical Equations
All of the chemical changes you observed in the last Investigation were the result of chemical reactions. A chemical reaction involves a rearrangement of atoms in one or more reactants to form one or more
Electrophilic Aromatic Substitution
Electrophilic Aromatic Substitution Electrophilic substitution is the typical reaction type for aromatic rings. Generalized electrophilic aromatic substitution: E E Electrophile Lewis acid: may be or neutral.
Calculating Atoms, Ions, or Molecules Using Moles
TEKS REVIEW 8B Calculating Atoms, Ions, or Molecules Using Moles TEKS 8B READINESS Use the mole concept to calculate the number of atoms, ions, or molecules in a sample TEKS_TXT of material. Vocabulary
Willem Elbers. October 9, 2015
S N 1 and S N 2 reactivity of 3 alkyl bromides Willem Elbers ctober 9, 2015 1 Abstract n this experiment, we investigate the relative reactivities of three alkyl bromides with increasing steric bulk. We
INTDUCTIN T LEWIS ACID-BASE CEMISTY DEINITINS Lewis acids and bases are defined in terms of electron pair transfers. A Lewis base is an electron pair donor, and a Lewis acid is an electron pair acceptor.
CHE 232 - Organic Chemistry Exam 1, February 10, 2004
CE 232 - rganic Chemistry Exam 1, February 10, 2004 ame Student ID o. Before you begin this exam: First: You are allowed to have a simple model set at your seat. Please put away all other materials. Second:
CH 3 CH 2 ONa + H 2 O. CH 3 CH 2 NH 2 + CH 3 OLi
rganic Chemistry Jasperse Acid- Practice Problems A. Identify each chemical as either an acid or a base in the following reactions, and identify conjugate relationships. -You should have one acid and one
Chapter 6 An Overview of Organic Reactions
John E. McMurry www.cengage.com/chemistry/mcmurry Chapter 6 An Overview of Organic Reactions Why this chapter? To understand organic and/or biochemistry, it is necessary to know: -What occurs -Why and
Acids and Bases: Molecular Structure and Acidity
Acids and Bases: Molecular Structure and Acidity Review the Acids and Bases Vocabulary List as needed. Tutorial Contents A. Introduction B. Resonance C. Atomic Radius D. Electronegativity E. Inductive
California State Polytechnic University, Pomona. Exam Points 1. Nomenclature (1) 30
Chem 316 Final Exam Winter, 2008 Beauchamp ame: Topic Total Points Exam Points 1. omenclature (1) 30 Credit 2. Explanation of elative eactivities of Aromatic 20 Compounds or Carbonyl Compounds 3. eactions
Reminder: These notes are meant to supplement, not replace, the textbook and lab manual. Electrophilic Aromatic Substitution notes
Reminder: These notes are meant to supplement, not replace, the textbook and lab manual. Electrophilic Aromatic Substitution notes History and Application: The rate of a reaction directly impacts the commercial
Chapter 11 Homework and practice questions Reactions of Alkyl Halides: Nucleophilic Substitutions and Eliminations
Chapter 11 Homework and practice questions Reactions of Alkyl Halides: Nucleophilic Substitutions and Eliminations SHORT ANSWER Exhibit 11-1 Circle your response in each set below. 1. Circle the least
Electrophilic Addition Reactions
Electrophilic Addition Reactions Electrophilic addition reactions are an important class of reactions that allow the interconversion of C=C and C C into a range of important functional groups. Conceptually,
Writing a Correct Mechanism
Chapter 2 1) Balancing Equations Writing a Correct Mechanism 2) Using Arrows to show Electron Movement 3) Mechanisms in Acidic and Basic Media 4) Electron rich Species: Nucleophile or Base? 5) Trimolecular
Everything You Need to Know About Mechanisms. First rule: Arrows are used to indicate movement of electrons
Everything You eed to Know About Mechanisms A) The orrect Use of Arrows to Indicate Electron Movement The ability to write an organic reaction mechanism properly is key to success in organic chemistry
Chapter 2 - Polar Covalent Bonds; Acids and Bases
Chapter 2 - Polar Covalent Bonds; Acids and Bases For questions 1-10 give the letter of the term that best matches the given definition. a. Brønsted-Lowry Acid f. Ionic Bond b. Brønsted-Lowry Base g. Covalent
Lewis Dot Structures of Atoms and Ions
Why? The chemical properties of an element are based on the number of electrons in the outer shell of its atoms. We use Lewis dot structures to map these valence electrons in order to identify stable electron
Health Science Chemistry I CHEM-1180 Experiment No. 15 Molecular Models (Revised 05/22/2015)
(Revised 05/22/2015) Introduction In the early 1900s, the chemist G. N. Lewis proposed that bonds between atoms consist of two electrons apiece and that most atoms are able to accommodate eight electrons
GCE AS and A Level. Chemistry. AS exams 2009 onwards A2 exams 2010 onwards. Unit 2: Specimen mark scheme. Version 1.1
GCE AS and A Level Chemistry AS exams 2009 onwards A2 exams 2010 onwards Unit 2: Specimen mark scheme Version 1.1 Version 1.1: 07/07 abc General Certificate of Education Chemistry 2420 CHEM2 Chemistry
Molecular Models Experiment #1
Molecular Models Experiment #1 Objective: To become familiar with the 3-dimensional structure of organic molecules, especially the tetrahedral structure of alkyl carbon atoms and the planar structure of
Summer Holidays Questions
Summer Holidays Questions Chapter 1 1) Barium hydroxide reacts with hydrochloric acid. The initial concentration of the 1 st solution its 0.1M and the volume is 100ml. The initial concentration of the
Chapter 2 Polar Covalent Bonds; Acids and Bases
John E. McMurry http://www.cengage.com/chemistry/mcmurry Chapter 2 Polar Covalent Bonds; Acids and Bases Javier E. Horta, M.D., Ph.D. University of Massachusetts Lowell Polar Covalent Bonds: Electronegativity
ORGANIC CHEMISTRY I PRACTICE PROBLEMS FOR BRONSTED-LOWRY ACID-BASE CHEMISTRY
RGANIC CHEMISTRY I PRACTICE PRBLEMS FR BRNSTED-LWRY ACID-BASE CHEMISTRY 1. For each of the species below, identify the most acidic proton and provide the structure of the corresponding conjugate base.
ORGANIC COMPOUNDS IN THREE DIMENSIONS
(adapted from Blackburn et al., Laboratory Manual to Accompany World of hemistry, 2 nd ed., (1996) Saunders ollege Publishing: Fort Worth) Purpose: To become familiar with organic molecules in three dimensions
Suggested solutions for Chapter 7
s for Chapter 7 7 PRBLEM 1 Are these molecules conjugated? Explain your answer in any reasonable way. C Et C Et C Et Revision of the basic kinds of conjugation and how to show conjugation with curly arrows.
Studying an Organic Reaction. How do we know if a reaction can occur? And if a reaction can occur what do we know about the reaction?
Studying an Organic Reaction How do we know if a reaction can occur? And if a reaction can occur what do we know about the reaction? Information we want to know: How much heat is generated? How fast is
Survival Organic Chemistry Part I: Molecular Models
Survival Organic Chemistry Part I: Molecular Models The goal in this laboratory experience is to get you so you can easily and quickly move between empirical formulas, molecular formulas, condensed formulas,
EXPERIMENT 5: DIPEPTIDE RESEARCH PROJECT
EXPERIMENT 5: DIPEPTIDE RESEARCH PROJECT Pre-Lab Questions: None. 64 I. Background Information DIPEPTIDE RESEARCH PROJECT Methods developed by organic chemists for the synthesis of biopolymers have had
Department of Chemistry, Delaware State University
Department of Chemistry, Delaware State University Syllabus: ORGANIC CHEMISTRY II - 18042 - CHEM 211 01 (Spring 2016) 1. Course Information CRN 18042 Credit 3 Class Time M/W/R, 12:00 PM 12:50 PM Class
ALKENES AND ALKYNES REACTIONS A STUDENT WHO HAS MASTERED THE MATERIAL IN THIS SECTION SHOULD BE ABLE TO:
ALKENES AND ALKYNES REACTINS A STUDENT W AS MASTERED TE MATERIAL IN TIS SECTIN SULD BE ABLE T: 1. Given the starting materials and reaction conditions, predict the products of the following reactions of
1. Oxidation number is 0 for atoms in an element. 3. In compounds, alkalis have oxidation number +1; alkaline earths have oxidation number +2.
à xidation numbers In the Lewis model of bonding, when nonidentical atoms are bonded together, an important consideration is how the bonding electrons are apportioned between the atoms. There are two different
Chem 1100 Chapter Three Study Guide Answers Outline I. Molar Mass and Moles A. Calculations of Molar Masses
Chem 1100 Chapter Three Study Guide Answers Outline I. Molar Mass and Moles A. Calculations of Molar Masses B. Calculations of moles C. Calculations of number of atoms from moles/molar masses 1. Avagadro
AP CHEMISTRY 2007 SCORING GUIDELINES. Question 6
AP CHEMISTRY 2007 SCORING GUIDELINES Question 6 Answer the following questions, which pertain to binary compounds. (a) In the box provided below, draw a complete Lewis electron-dot diagram for the IF 3
Chapter 15 Radical Reactions. Radicals are reactive species with a single unpaired electron, formed by
Chapter 15 Radical Reactions Radicals are reactive species with a single unpaired electron, formed by homolysis of a covalent bond; a radical contains an atom that does not have an octet of electrons,
In the box below, draw the Lewis electron-dot structure for the compound formed from magnesium and oxygen. [Include any charges or partial charges.
Name: 1) Which molecule is nonpolar and has a symmetrical shape? A) NH3 B) H2O C) HCl D) CH4 7222-1 - Page 1 2) When ammonium chloride crystals are dissolved in water, the temperature of the water decreases.
EXPERIMENT 3 (Organic Chemistry II) Nitration of Aromatic Compounds: Preparation of methyl-m-nitrobenzoate
EXPERIMENT 3 (Organic Chemistry II) Nitration of Aromatic Compounds: Preparation of methyl-m-nitrobenzoate Pahlavan/Cherif Purpose a) Study electrophilic aromatic substitution reaction (EAS) b) Study regioselectivity
Chapter 22 Carbonyl Alpha-Substitution Reactions
John E. McMurry www.cengage.com/chemistry/mcmurry Chapter 22 Carbonyl Alpha-Substitution Reactions The α Position The carbon next to the carbonyl group is designated as being in the α position Electrophilic
Double Bonds. Hydration Rxns. Hydrogenation Rxns. Halogenation. Formation of epoxides. Syn addition of 2 OH. Ozonolysis
Double Bonds What do we do with double bonds? We do addition reactions. In an addition reaction, something is added to both carbons involved in a double bond (or not involved in the double bond, in the
Chemistry Notes for class 12 Chapter 13 Amines
1 P a g e Chemistry Notes for class 12 Chapter 13 Amines Amines constitute an important class of organic compounds derived by replacing one or more hydrogen atoms ofnh 3 molecule by alkyl/aryl group(s).
Sample Exercise 8.1 Magnitudes of Lattice Energies
Sample Exercise 8.1 Magnitudes of Lattice Energies Without consulting Table 8.2, arrange the ionic compounds NaF, CsI, and CaO in order of increasing lattice energy. Analyze From the formulas for three
ch9 and 10 practice test
1. Which of the following covalent bonds is the most polar (highest percent ionic character)? A. Al I B. Si I C. Al Cl D. Si Cl E. Si P 2. What is the hybridization of the central atom in ClO 3? A. sp
1. What is the hybridization of the indicated atom in the following molecule?
Practice Final Exam, Chemistry 2210, rganic Chem I 1. What is the hybridization of the indicated atom in the following molecule? A. sp 3 B. sp 2 C. sp D. not hybridized 2. Name the functional groups in
17.2 REACTIONS INVOLVING ALLYLIC AND BENZYLIC RADICALS
17. REACTINS INVLVING ALLYLIC AND BENZYLIC RADICALS 793 As Eq. 17. shows, the products derived from the reaction of water at the ring carbons are not formed. The reason is that these products are not aromatic
Bonding Practice Problems
NAME 1. When compared to H 2 S, H 2 O has a higher 8. Given the Lewis electron-dot diagram: boiling point because H 2 O contains stronger metallic bonds covalent bonds ionic bonds hydrogen bonds 2. Which
ORGANIC CHEMISTRY I PRACTICE EXERCISE Sn1 and Sn2 Reactions
ORGANIC CEMISTRY I PRACTICE EXERCISE Sn1 and Sn2 Reactions 1) Which of the following best represents the carbon-chlorine bond of methyl chloride? d d - d - d d d d - d - I II III IV V 2) Provide a detailed,
SN2 Ionic Substitution Reactions
SN2 Ionic Substitution Reactions Chem 14D Winter 2005 SN2 Ionic Substitution Reactions Substitution can occur in organic compounds that have an electronegative atom or group bonded to an sp 3 hybridized
Chapter 7 Substitution Reactions
Chapter 7 Substitution Reactions Review of Concepts Fill in the blanks below. To verify that your answers are correct, look in your textbook at the end of Chapter 7. Each of the sentences below appears
ORGANIC CHEM I Practice Questions for Ch. 4
ORGANIC CHEM I Practice Questions for Ch. 4 1) Write an equation to describe the initiation step in the chlorination of methane. 2) Reaction intermediates that have unpaired electrons are called. 3) When
3.4 BRØNSTED LOWRY ACIDS AND BASES
96 CAPTER 3 ACIDS AND BASES. TE CURVED-ARROW NOTATION and that the unshared electron pair (and negative charge) is shared equally by the two terminal carbons. C L C A C 1 allyl anion (c) Using the curved-arrow
Chapter 2 Polar Covalent Bonds: Acids and Bases
John E. McMurry www.cengage.com/chemistry/mcmurry Chapter 2 Polar Covalent Bonds: Acids and Bases Modified by Dr. Daniela R. Radu Why This Chapter? Description of basic ways chemists account for chemical
CHEM 208(Organic Chemistry I) Instructor: Dr. Niranjan Goswami. Tel: (618)545-3361. Email: Ngoswami@kaskaskia.edu. Web: www.kc.cc.il.
CHEM 208(Organic Chemistry I) Instructor: Dr. Niranjan Goswami Tel: (618)545-3361 Email: Ngoswami@kaskaskia.edu Web: www.kc.cc.il.us/ngoswami CHEM 208 COURSE SYLLABUS KASKASKIA COLLEGE NAME TERM YEAR TEXT:
Carboxylic Acid Derivatives and Nitriles
Carboxylic Acid Derivatives and itriles Carboxylic Acid Derivatives: There are really only four things to worry about under this heading; acid chlorides, anhydrides, esters and amides. We ll start with
Suggested solutions for Chapter 3
s for Chapter PRBLEM Assuming that the molecular ion is the base peak (00% abundance) what peaks would appear in the mass spectrum of each of these molecules: (a) C5Br (b) C60 (c) C64Br In cases (a) and
13C NMR Spectroscopy
13 C NMR Spectroscopy Introduction Nuclear magnetic resonance spectroscopy (NMR) is the most powerful tool available for structural determination. A nucleus with an odd number of protons, an odd number
A mutual electrical attraction between the nuclei and valence electrons of different atoms that binds the atoms together is called a(n)
Chemistry I ATOMIC BONDING PRACTICE QUIZ Mr. Scott Select the best answer. 1) A mutual electrical attraction between the nuclei and valence electrons of different atoms that binds the atoms together is
Lewis Dot Notation Ionic Bonds Covalent Bonds Polar Covalent Bonds Lewis Dot Notation Revisited Resonance
Lewis Dot Notation Ionic Bonds Covalent Bonds Polar Covalent Bonds Lewis Dot Notation Revisited Resonance Lewis Dot notation is a way of describing the outer shell (also called the valence shell) of an
Aromaticity and Reactions of Benzene
Aromaticity and eactions of Benzene ark College Benzene is a unique molecule it is highly unsaturated with 6 carbons and 6 hydrogens, it is planar, and has a high degree of symmetry. These features explain
Word Equations and Balancing Equations. Video Notes
Word Equations and Balancing Equations Video Notes In this lesson, you will: Use the law of conservation of mass and provide standard rules for writing and balancing equations. Write and balance equations
Ionic and Metallic Bonding
Ionic and Metallic Bonding BNDING AND INTERACTINS 71 Ions For students using the Foundation edition, assign problems 1, 3 5, 7 12, 14, 15, 18 20 Essential Understanding Ions form when atoms gain or lose
2. Which one of the ions below possesses a noble gas configuration? A) Fe 3+ B) Sn 2+ C) Ni 2+ D) Ti 4+ E) Cr 3+
Chapter 9 Tro 1. Bromine tends to form simple ions which have the electronic configuration of a noble gas. What is the electronic configuration of the noble gas which the bromide ion mimics? A) 1s 2 2s
Brønsted-Lowry Acids and Bases
Brønsted-Lowry Acids and Bases 1 According to Brønsted and Lowry, an acid-base reaction is defined in terms of a proton transfer. By this definition, the reaction of Cl in water is: Cl(aq) + Cl (aq) +
2814 hains, Rings and Spectroscopy June 2003 Mark Scheme 2814 Mark Scheme June 2003 The following annotations may be used when marking: X = incorrect response (errors may also be underlined) ^ = omission
Assessment Schedule 2013 Chemistry: Demonstrate understanding of the properties of organic compounds (91391)
NCEA Level 3 Chemistry (91391) 2013 page 1 of 8 Assessment Schedule 2013 Chemistry: Demonstrate understanding of the properties of organic compounds (91391) Evidence Statement Q Evidence Achievement Achievement
But in organic terms: Oxidation: loss of H 2 ; addition of O or O 2 ; addition of X 2 (halogens).
Reactions of Alcohols Alcohols are versatile organic compounds since they undergo a wide variety of transformations the majority of which are either oxidation or reduction type reactions. Normally: Oxidation
The 5 Types of Chemical Reactions (Chapter 11) By C B 6 th period
The 5 Types of Chemical Reactions (Chapter 11) By C B 6 th period 1) Combination Reactions Is also referred to as a synthesis reaction It is a chemical change in which two or more substances react to form
CHM4 Further Physical and Organic Chemistry
GE 005 January Series abc Mark Scheme hemistry M4 Further Physical and rganic hemistry Mark schemes are prepared by the Principal Examiner and considered, together with the relevant questions, by a panel
Chemistry B11 Chapter 4 Chemical reactions
Chemistry B11 Chapter 4 Chemical reactions Chemical reactions are classified into five groups: A + B AB Synthesis reactions (Combination) H + O H O AB A + B Decomposition reactions (Analysis) NaCl Na +Cl
Austin Peay State University Department of Chemistry CHEM 1021 TESTING FOR ORGANIC FUNCTIONAL GROUPS
TESTING FOR ORGANIC FUNCTIONAL GROUPS Caution: Chromic acid is hazardous as are many of the organic substances in today s experiment. Treat all unknowns with extreme care. Many organic substances are flammable.
INTERMOLECULAR FORCES
INTERMOLECULAR FORCES Intermolecular forces- forces of attraction and repulsion between molecules that hold molecules, ions, and atoms together. Intramolecular - forces of chemical bonds within a molecule
CHEMISTRY II FINAL EXAM REVIEW
Name Period CHEMISTRY II FINAL EXAM REVIEW Final Exam: approximately 75 multiple choice questions Ch 12: Stoichiometry Ch 5 & 6: Electron Configurations & Periodic Properties Ch 7 & 8: Bonding Ch 14: Gas
Sample Exercise 8.1 Magnitudes of Lattice Energies
Sample Exercise 8.1 Magnitudes of Lattice Energies Without consulting Table 8.2, arrange the following ionic compounds in order of increasing lattice energy: NaF, CsI, and CaO. Analyze: From the formulas
Chemistry 5.12 Spring 2003 Lectures #1 & 2, 2/5,7/03. Outline
hemistry 5.12 Spring 2003 Lectures #1 & 2, 2/5,7/03 utline Discuss General lass Information (Professor Imperiali) General Introduction to rganic hemistry I. Review of Lewis Bonding Theory (Read hapter
Please read and sign the Honor Code statement below:
CHEM 3311 Exam #1 Name Dr. Minger June 8, 2015 Please read and sign the Honor Code statement below: I pledge that on my honor, as a University of Colorado at Boulder student, I have neither given nor received
Conjugation is broken completely by the introduction of saturated (sp 3 ) carbon:
Conjugation. Conjugation relies on the partial overlap of p-orbitals on adjacent double or triple bonds. ne of the simplest conjugated molecules is 1,3-butadiene. Conjugation comes in three flavors, the
Course Prerequisite: Chemistry 141 or 143.
Instructor: Matthias Brewer; Office: Cook A316; email: Matthias.Brewer@uvm.edu BlackBoard Site: bb.uvm.edu Lecture: 10:40am 11:30am MWF, Angell B106 Review Sessions: 5:30pm Thur., Angell B106 Laboratory
Question 4.2: Write Lewis dot symbols for atoms of the following elements: Mg, Na, B, O, N, Br.
Question 4.1: Explain the formation of a chemical bond. A chemical bond is defined as an attractive force that holds the constituents (atoms, ions etc.) together in a chemical species. Various theories
Chapter 13 Spectroscopy NMR, IR, MS, UV-Vis
Chapter 13 Spectroscopy NMR, IR, MS, UV-Vis Main points of the chapter 1. Hydrogen Nuclear Magnetic Resonance a. Splitting or coupling (what s next to what) b. Chemical shifts (what type is it) c. Integration
CHEM 203 Exam 1. KEY Name Multiple Choice Identify the letter of the choice that best completes the statement or answers the question.
CHEM 203 Exam 1 KEY Name Multiple Choice Identify the letter of the choice that best completes the statement or answers the question. _D C 1. Which of the following elements is a large percentage of both
Chemical Reactions 2 The Chemical Equation
Chemical Reactions 2 The Chemical Equation INFORMATION Chemical equations are symbolic devices used to represent actual chemical reactions. The left side of the equation, called the reactants, is separated
CHAPTER 6 Chemical Bonding
CHAPTER 6 Chemical Bonding SECTION 1 Introduction to Chemical Bonding OBJECTIVES 1. Define Chemical bond. 2. Explain why most atoms form chemical bonds. 3. Describe ionic and covalent bonding.. 4. Explain
Identification of Unknown Organic Compounds
Identification of Unknown Organic Compounds Introduction The identification and characterization of the structures of unknown substances are an important part of organic chemistry. Although it is often
ANSWER KEY : BUILD AN ATOM PART I: ATOM SCREEN Build an Atom simulation ( http://phet.colorado.edu/en/simulation/build an atom )
ANSWER KEY : PART I: ATOM SCREEN Build an Atom simulation ( http://phet.colorado.edu/en/simulation/build an atom ) 1. Explore the Build an Atom simulation with your group. As you explore, talk about what
Chapter 10. Conjugation in Alkadienes and Allylic Systems. Class Notes. B. The allyl group is both a common name and an accepted IUPAC name
Chapter 10 Conjugation in Alkadienes and Allylic Systems Chapter 10 suggested problems: I. The allyl group Class Notes A. B. The allyl group is both a common name and an accepted IUPAC name 1. Allyl alcohol
Cambridge International Examinations Cambridge International Advanced Subsidiary and Advanced Level
Cambridge International Examinations Cambridge International Advanced Subsidiary and Advanced Level *0123456789* CHEMISTRY 9701/02 Paper 2 AS Level Structured Questions For Examination from 2016 SPECIMEN
Mass Spec - Fragmentation
Mass Spec - Fragmentation An extremely useful result of EI ionization in particular is a phenomenon known as fragmentation. The radical cation that is produced when an electron is knocked out of a neutral