Organic Chemistry

Table of Contents Lecture/Lab/Activity DatePg# 22. The Periodic Table 9/24/10 47 23. Periodic Def & Trends 9/27/10 49 24. Electron config practice 10/4/10 51 25. Ions and Oxidation Numbers 10/5/10 53 26. Lewis Dot Diagram 10/6/10 54 27. Intro to Chemical Bonding 10/7/10 57 28. Covalent Bonding 10/12/10 61 29. Ionic Bonding 10/14/10 61 30. Ionic vs. Covalent Lab 10/18/10 63 31. Metallic Bonding 10/19/10 61 32. Molecular Geometry 10/21/10 64 33. Writing Chemical Formulas 10/25/10 67 34. Naming Ionic Compounds 10/26/10 69 35. Ionic Compounds Puzzle 10/27/10 71 36. Naming Molecular Compounds 10/29/10 73 37.Acid Nomenclature 11/03/10 75 38. Organic Chemistry – Alkanes 11/04/10 77 39. Organic Chem–Alkenes&Alkynes 11/05/10 79 40. Org Chem-Branched Alkanes 11/08/10 81 Organic Chemistry Branched Alkanes Structural Formulas Structural Isomers Objective: The student will record lecture notes on Hydrocarbons and document how to use the IUPAC nomenclature rules to name Alkanes Agenda: Organic Chemistry– Lecture

Branched Alkanes • Branches on carbon chains H H C CH3 methyl H H H H C C CH3CH2 ethyl H H

Branched Alkanes CH3 • CH3CH CH3 methyl groups CH3 CH3 • CH3CH CH2CHCH3

Naming Branched Alkanes CH3 methyl branch CH3CH2CH2CHCH2CH3 6 5 4 3 2 1 Count 3-Methylhexane on third C CH3 six carbon chain group

Naming Summary • Count the C’s in the longest chain • Name each attached group • Count the longest carbon chain to give the first attached group the smallest number • Name and locate each group

Learning Check Alk4 CH3 CH3 • CH3CHCH2CHCH3 CH3 CH3 • CH3CH2CHCH2CHCH2CH3 CH3 2,4-dimethylpentane 3,3,5-trimethylheptane

Learning Check Alk5 Write a condensed structure for • 3,4-dimethylheptane CH3 CH3CH2CHCHCH2CH2CH3 CH3

Isomers • Same molecular formula • Same number and types of atoms • Different arrangement of atoms

Learning Check Alk6 • Write 3 isomers of C5H12 and name each. • CH3CH2CH2CH2CH3 pentane • CH3CHCH2CH3 2-methylbutane CH3 CH3 • CH3CCH3 2,2-dimethylpropane CH3

Organic Chemistry