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Notes - Section 4.1-4.3

Notes - Section 4.1-4.3 - Paul Jackman Chemistry CHE 106...

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Paul Jackman September 29, 2009 Chemistry CHE 106 – M029 Section 4.1-4.3 Notes CHAPTER 4- Aqueous Reactions and Solution Stoichiometry A solution in which water is the dissolving medium is called an aqueous solution Water has an exceptional ability to dissolve a wide variety of substances Water is the medium for most of the chemical reactions that take place around us 4.1 General Properties of Aqueous Solutions A solution is a homogeneous mixture of two or more substances The substances present in the greatest quantity is usually called the solvent The other substances in the solution are called the solutes Electrolytic Properties A substance (such as NaCl) whose aqueous solutions contain ions is called an electrolyte A substance (such as C 12 H 22 O 11 ) that does not form ions in a solution are called nonelectrolyte Fist is ionic, second is molecular Ionic Compounds in Water The ionic solid dissociates into its component ions as it dissolves The salvation process helps stabilize the ions in solution and prevents cations and anions from recombining
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