CHEM 2301 1st Edition Lecture 1Outline of Current Lecture I. Course introductionII. Drawing Lewis structuresIII. Lewis structures of common moleculesCurrent Lecture- Course introductiono Instructors: Professor Tolman and co-instructor Dr. Alex Johno Lecture behavior Be on time and fill seats in the middle of the rows first No sitting in the aisles No cell phones or texting during class No laptops No sleeping Take notes and practice drawing molecules Ask questions and participateo How to do well in organic chemistry Keep up and learn the material like learning a new language Come to class and participate Keep up and do a little every day Do lots of problems effectively Read the material in the book that will be covered in class before the lecture After class, download lecture slides and work on the in-chapter problems in the booko Getting help Bring questions to office hours TA tutor room Study advice on the Moodle site ChemFoundations sessionso Setting up your clicker Turn on the clicker Hold down the power button until the frequency begins to flash, then press ACo Goals of the course By the end of the course, you should have a basic understanding of: - Geometric and electronic structure of basic organic molecules- How structure relates to reactivity for certain types of systemsThese notes represent a detailed interpretation of the professor’s lecture. GradeBuddy is best used as a supplement to your own notes, not as a substitute.- How to solve organic chemistry problems- Know how organic molecules react and how to make them- The bottom line: Almost all reactions involve a molecule willing to give up electrons interacting with a molecule that wants them.- Drawing Lewis Structureso Draw a molecular skeletono Count valence electronso Adjust for chargeo Arrange electrons to fill most shellso Assign formal charges- Counting electronso For octet: court all the electrons around the atomo For formal charge: count all electrons in lone pairs and count one electron for each bond- Possible carbon bonding patterns- Lewis structures of common molecules- CH3 group = methyl group- Names ending in “ene” mean there is a double bond- Names ending in “onium” mean there is a positive charge - Isoelectronic: Two molecules with the same number of electrons but different atoms o CH4 and NH4+Carbonium ionCarbide ionCH4 (Methane)NH4+ (Ammonium ion)CH3OH (Methanol)C2H4
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