Lecture 039: rest of problems chap 9
The rest of the problems for chap 9 have been uploaded in WebCT. (probs 27, 36, 37).
The rest of the problems for chap 9 have been uploaded in WebCT. (probs 27, 36, 37).
Here is a second review session for the final exam.
Here is the first review session for the final exam.
This lecture covers the basics of alkyne nomenclature, synthesis and reactions.
Here is the review session for the make-up of test 2, covering chapters 5-8.
Here is the review session for test 2, covering chapters 5-8.
This lecture covers the rest of the alkene reactions starting at the anti-Markovnikov addition of HBr.
This lecture covers reactions of alkenes.
The introduction to alkenes, nomenclature and preparation.
A very short final part of Alkyl Halides doing one E-1 and one E-2 example
I start with the solvent effects in SN1 and SN2 reactions then the rearrangement of carbocations in SN1 reactions by 1,2-shifts. The detailed mechanism of E-1 and E-2 reactions is covered.
I start with alkyl halide nomenclature then an overview of preparation and reactions.
Solutions to the problem set for Chap 5 are now available in WebCT.
This lecture first looks at assigning R and S nomenclature to molecules with multiple chiral centers. Then we explore reactions involving chiral centers, at a chiral center and next to a chiral center.
This lecture explains how to assign R and S to chiral centers and looks at molecules with more than one chiral center, leading to diastereomers and meso isomers.
This is an introduction to chirality showing first how to create an enantiomer by putting 4 different groups on an sp3 hybridized carbon. Properties of enantiomers are discussed.
This is a review session to prepare for the make-up of test 1. This is from another term so, as usual, ignore any comments referring to dates or to the policy on the make-up grade. I will use the better score between the test and make-up.
This is a review session to prepare for test 1. This is from another term so, as usual, ignore any comments referring to dates. This term we didn't really have any questions that were not already answered in the problem set.
The free radical halogenation problem solutions are available in WebCT.
Here is the second part to the free radical halogenation reaction. Learn how to determine the major and minor products from the reaction of halogens with alkanes.
Here is an introduction to the free radical halogenation reaction. The full muchanism of the reaction of Br2 with methane in the presence of light is used as an example.
The solutions to problems 42-44 in Chapter 3 are now available in WebCT. I also made the video available as Flash. Let me know how it compares to the Real format, which should be available within 36 hours of the lecture. You have to scroll down to see the controller for the Flash presentation.
The solutions to problems 33-34 in Chapter 3 are now available in WebCT. I also made the video available as Flash. Let me know how it compares to the Real format, which should be available within 36 hours of the lecture. You have to scroll down to see the controller for the Flash presentation.
We finished up Newman projections with butane. Cycloalkanes were covered, including determining the more stable conformation of cyclohexane derivatives.
The solutions to problems 37-42 in Chapter 2 are now available in WebCT. I also made the video available as Flash. Let me know how it compares to the Real format, which should be available within 36 hours of the lecture. You have to scroll down to see the controller for the Flash presentation.
The solutions to problems 27-35 in Chapter 2 are now available in WebCT. I also made the video available as Flash. Let me know how it compares to the Real format, which should be available within 36 hours of the lecture.
We finished up intermolecular forces and predicting relative boiling points and solubility. Functional groups were introduced. Looked at the first ten alkanes then reactions of alkanes and Newman projections for ethane and propane.
The solutions for the first chapter problems can be found in WebCT. The screencast link should be up within 24 hours of the class recording.
We finished up molecular orbitals with the sp hybrid in acetylene and looked at predicting molecular shape from hybridization. We examined the rigidity of double bonds leading to geometrical isomers (in contrast to constitutional isomers). Polar and non polar molecules were analysed based on the summation of their polar bonds.
We continued with examples of Lewis structures: SO2, SO3, N3-, H2SO4, N2O. We just worried about getting the right number of bonds and lone pairs, not the geometry of the molecules. In order to look at geometry we need to look at molecular orbitals. The formation of sp3 and sp2 hybrid orbitals was demonstrated for CH4 and CH2=CH2, respectively.
We reviewed the Lewis Dot structures of H2, F2, O2, N2, CH4, CO2, BF3, NH3, CO and SO. And then the fire alarm went off and we had to rush out.
We reviewed the electronic configuration of the first 10 elements using the Pauli Exclusion Principle and Hund's Rule. Introduced covalent and ionic bonding.
LEWIS DOT APPROACH TO MOLECULAR STRUCTURE