chapter 4-lectures

chapter 4-lectures - Reactions in Aqueous Solution Chapter...

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A solution is a homogenous mixture of 2 or more pure substances The solute is(are) the substance(s) present in the smaller amount(s) The solvent is the substance present in the larger amount An electrolyte is a substance that, when dissolved in water, dissociate into ions and results in a solution that can conduct electricity. Strong Electrolyte – 100% dissociation Weak Electrolyte – not completely dissociated Reactions in Aqueous Solution Chapter 4 Example: Which of the following substances would be considered a nonelectrolyte? A. Sucrose C 12 H 22 O 11 (sugar) B. Ammonium chloride (NH 4 Cl) C. Sodium hydroxide (NaOH) D. Potassium nitrate (KNO 3 ) Hydration is the process in which an ion is surrounded by water molecules arranged in a specific manner. Hydration of Na + and Cl - ions. Solubility is the maximum amount of solute that will dissolve in a given quantity of solvent at a specific temperature.
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Precipitation Reactions molecular equation ionic equation net ionic equation Pb 2+ + 2NO 3 - + 2K + + 2I - → PbI 2 ( s ) + 2K + + 2NO 3 - Pb(NO 3 ) 2 ( aq ) + 2KI ( aq ) → PbI 2 ( s ) + 2KNO 3 ( aq ) Pb 2+ + 2I - → PbI 2 ( s ) Writing Net Ionic Equations 1. Write the balanced molecular equation.
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chapter 4-lectures - Reactions in Aqueous Solution Chapter...

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