Organic Chemistry

CHEM | S20 | Organic Chemistry | exam |First Weekly Examination Chemistry S-20ab June 30, 2014 8:10 — 9:20 a.m. Name: Section TF: Important Notes: 1. This exam consists of 8 problems on 8 pages, plus this cover sheet, and one page for scratch work at the end of the exam. 2. All answers must be written in the spaces provided. Do not write anything in red ink. Answers written on the back of a page will not b

Chem S-20ab Summer 2014 Section Objectives Week 3, Day 2 By the end of the day, you should be able to . . .  Identify the IR peaks for C=C, C=O, O-H and triple bonds.  Identify signals in H NMR based on their chemical shifts.  Explain splitting patterns of H NMR spectra.  Use the information from the IR spectrum and the NMR spectrum to identify a compound with a give

CHEM | S20 | Organic Chemistry | study_guides |Chem S-20ab Summer 2014 Section Objectives Week 3, Day 2 By the end of the day, you should be able to . . .  Identify the IR peaks for C=C, C=O, O-H and triple bonds.  Identify signals in H NMR based on their chemical shifts.  Explain splitting patterns of H NMR spectra.  Use the information from the IR spectrum and the NMR spectrum to identify a compound with a give

Chemistry S-20ab Review for Exam 1 Peter Hamel Harvard Summer School June 27, 2014 Stuff you need to know and be able to do . . . • Structures of molecules – Lewis and skeletal structures – Hybridization/geometry – Resonance – Functional groups – Nomenclature of alkanes, alkenes – Conformational analysis – MO’s Lewis structures, resonance, hybridization,

CHEM | S20 | Organic Chemistry | exam |Chemistry S-20ab Review for Exam 1 Peter Hamel Harvard Summer School June 27, 2014 Stuff you need to know and be able to do . . . • Structures of molecules – Lewis and skeletal structures – Hybridization/geometry – Resonance – Functional groups – Nomenclature of alkanes, alkenes – Conformational analysis – MO’s Lewis structures, resonance, hybridization,

CHEM | S20 | Organic Chemistry | exam |

Factors That Influence Acidity: The Main Atom • Examine the pKa’s for each of the following pairs of acids, and explain why one acid is stronger than the other. H OH H F H 2 C N H H H H 3 C C N H 3 C H H OH H OH 2 +15.7 +3.2 +15.7 –1.7 +10 –10 • Compare these trends with the “ low-energy trifecta ” you saw earlier .... any similarities? • Now examine the four acids from the upper-r

CHEM | S20 | Organic Chemistry | study_guides |Factors That Influence Acidity: The Main Atom • Examine the pKa’s for each of the following pairs of acids, and explain why one acid is stronger than the other. H OH H F H 2 C N H H H H 3 C C N H 3 C H H OH H OH 2 +15.7 +3.2 +15.7 –1.7 +10 –10 • Compare these trends with the “ low-energy trifecta ” you saw earlier .... any similarities? • Now examine the four acids from the upper-r

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