lect_13oct27f08

lect_13oct27f08 - Outline 13 27-OCT-2008 1 Review Solution...

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1 Outline 13 27-OCT-2008 1. Review – Solution Stoichiometry,Volume↔mol, mass↔mol Please review previous lecture examples, Ex: ? 2. Water as solvent Ionic compounds , # mol ions 4. Writing Equations molecular, total and net ionic equations
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2 Types of Chemical Reactions CH. 4 is about writing chemical equations. Need to know what can be written as ions in solution (strong electrolytes)! 1. Soluble ionic compounds (solubility rules) 2. Strong acids First: Why is water a good solvent? 1. Polar Bonds (charge uneven) 2. Bent Geometry (polar) Next slide ( CO 2 has polar bonds but linear geometry makes nonpolar overall )
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3 Fig. 4.1 Electron Distribution A. H 2 Even B, C, D. H 2 O Uneven, Separated Poles of Charge Polar nature helps explain water as a solvent. Charges attract other molecules and ions
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4 Fig. 4.2
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5 Summary on Electrolytes Electrolytes - (Conduct electricity in water.) A. Soluble Ionic Compounds - Often Strong Use Solubility Rules (NaCl (aq)) B. Some Molecular Compounds - Often Weak Acids and Bases - Most Are Weak Will learn the few (7) Strong Ones {Ex:HCl(aq)} C. Will practice these ideas in Ch. 4.
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Ions in Aqueous Solution Electrolytes - Compounds that dissociate into independent ions in aqueous solution. Ions carry the electrical charge in the solution.
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This note was uploaded on 02/18/2009 for the course CHEM 1A taught by Professor Okamura during the Fall '08 term at UC Riverside.

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lect_13oct27f08 - Outline 13 27-OCT-2008 1 Review Solution...

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