Villanova CHM 2201 - Learning to Use the Molecular Model Kit (10 pages)

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Learning to Use the Molecular Model Kit



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Learning to Use the Molecular Model Kit

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Pages:
10
School:
Villanova University
Course:
Chm 2201 - Organic Chemistry Lab I

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CHM 2201 Organic Chemistry Lab I Fall 2008 Department of Chemistry Villanova University Week 4 September 16 22 2008 Learning to Use the Molecular Model Kit and the Basics of Isomerism If you haven t already done so buy a Molecular Visions molecular model kit from the stockroom It is the kit that comes in the green plastic box Here is what we ll cover in today s lab 1 The Common 2nd Row Element Presentations pp 10 11 of the model kit manual With the help of your professor and TA s together we are going to go through some of the contents of your kit We will follow what is on pages 10 11 of the manual that came with your kit Note try to learn which pieces are needed to make organic compounds also note how to put all the pieces back in the box as it is a tight fit and every piece has a particular place 2 Assembly and Disassembly of Atoms With Bonds pp 15 17 Carefully follow the descriptions on making an sp3 hybridized atom and making atoms joined by a double bond It is important to learn how to put these pieces together properly and securely and learn how to take them apart efficiently Page 1 of 10 3 Constructing a variety of molecules We ll begin by keeping things simple putting together molecules containing only carbon and hydrogen frequently called And we ll start off with acyclic hydrocarbons What does this mean 3 Saturated means all the carbons are 0 hybridized or maybe a better way to think of it is that the molecule is saturated with hydrogens thus all carbon carbon bonds present are single bonds Acyclic means non cyclic meaning there are no rings of carbon atoms present which says that from any carbon atom in the molecule you cannot traverse along the carbon chain and get back to the same carbon you started from Exercise 1 Try putting together these molecules with your models given the molecular formula name in parentheses CH4 methane C2H6 ethane C3H8 propane Note how three dimensional these systems are and how many different shapes what organic chemists call 1



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