10 - Chem 6A Presentation#10 Overview Fundamentals I How...

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Chem 6A Presentation #10 2007-10-31 1 Overview Fundamentals I How does water behave as a solvent? What are electrolytes? What are precipitation reactions? How can precipitation reactions be used for analysis? Fundamentals J What are the properties of acids and bases in aqueous solution? What are the characteristics of neutralization reactions?
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2 How does water behave as a solvent? Water is a polar molecule : it has partial-positive (δ+) and partial negative (δ–) poles. The covalent bonds of the water molecule are polar . The bonding electrons of the water molecule are distributed unequally. Water molecules can interact strongly with ions and other polar molecules.
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3 How does water behave as a solvent? Solvation
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How does water behave as a solvent? Ionic compounds dissolve to different extents in water. For example: NaCl is highly soluble: dissolves to a concentration of 365 g/L at 20°C AgCl is nearly insoluble: dissolves to a concentration of 0.009 g/L at 20°C Differences in solubility vary over several orders of magnitude. We generalize and say that some ionic compounds are
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10 - Chem 6A Presentation#10 Overview Fundamentals I How...

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