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O-Chem Exam 1 Study Guide

by: Shea Claflin

O-Chem Exam 1 Study Guide CHEM 2451

Marketplace > University of Denver > Chemistry > CHEM 2451 > O Chem Exam 1 Study Guide
Shea Claflin
GPA 4.0

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About this Document

This study guide is a question based review tool for the Exam 1 coming up this Wednesday. It covers all the material from lectures through 1/27.
Organic Chemistry I
Dr. Peter J. Harrington
Study Guide
50 ?




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This 5 page Study Guide was uploaded by Shea Claflin on Friday January 29, 2016. The Study Guide belongs to CHEM 2451 at University of Denver taught by Dr. Peter J. Harrington in Fall 2016. Since its upload, it has received 159 views. For similar materials see Organic Chemistry I in Chemistry at University of Denver.


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Date Created: 01/29/16
Organic Chemistry Harrington Study Guide Exam 1 – Test Date February 3 rd 1) Explain the following concepts about atomic orbitals a) Aufbau Principle b) Pauli Exclusion Principle c) Hund’s Rule d) What orbitals correspond to each energy level/shell? e) Be sure to know how to write electron configurations 2) What is electronegativity? What is its range? 3) What is the difference between ionic, polar covalent, and covalent bonds? What is the Δ in electronegativity for each bond? ΔEN is represented by δ + or – in structures 4) Know how to draw Lewis Dot Structures – Review Guidelines in Notes Don’t forget formal charge = # of valence electrons – (nonbonding electrons + ½ bonding electrons) Practice by drawing dot structures for the following structures (answers on next page) + PBr5 BCl 3 HCN NH 4 Answers for #4 5) Know how to draw a resonance structure. Practice by drawing the resonance structure for CO 2Review Guidelines) 6) What direction to arrows point in curved arrow notation? 7) Know how to draw hybrid orbital diagrams. Draw one for NH 3 8) What is the general trend for atomic size in the periodic table? How does this affect bond length? 9) Explain the differences between Molecular Orbital theory and Valence Bond theory. 10) What is the general formula for alkanes? 11) What is the root name of alkanes with: 1 Carbon: 2 Carbons: 3 Carbons: 4 Carbons: 5 Carbons: 6 Carbons: 7 Carbons: 8 Carbons: 9 Carbons: 10 Carbons: 12) What are constitutional isomers? What are the constitutional isomers for propane and butane? 13) What are the IUPAC System’s steps for naming alkanes? 1. 2. 3. 4. 5. 6. 7. (don’t forget sub-steps) 14) What is unique about cycloalkanes? What is their general formula (1 ring, 2 rings, 3 rings)? 15) Describe the process for naming cycloalkanes. How do you number the carbons? How do you know if the molecule is named as an alkane or a cycloalkane? 16) What saturates alkanes? Are cycloalkanes saturated or unsaturated? 17) Degree of unsaturation = ? 18) How do you classify carbons in an alkane or cycloalkane? What is the degree of the hydrogen? 19) Describe the difference between intermolecular forces and intramolecular forces. 20) What happens when a solid melts or a liquid boils? What happens to the entropy? 21) Describe the three types of intramolecular attractive forces. Rank them strongest to weakest. Review how they help to predict boiling, melting point, and solubility. 1. 2. 3. 22) How do you use Newman Projections to illustrate the rotation of C-C bonds? 23) What angles are gauche and anti forms found at? What angles are staggered? What angles are eclipsed? Which of those positions is higher in energy? 24) Explain torsional and steric strain. 25) What are Lewis Acids and Lewis Bases? 26) What are Bronsted Acids and Bronsted Bases? 27) K eq = [ ] [ ] [ ] [ ] And K eq= [ ] [ ] at equilibrium [ ] 28) What are conjugate bases and conjugate acids? 29) How do you find pK ? Waat constitutes a weak or strong acid? 30) In curved arrow notation, how many are present in proton transfer reactions? Substitution reactions? Why?


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