Chapter Fourteen Notes II

Chapter Fourteen -

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Chapter Fourteen Notes  Ions in Aqueous Solutions and Colligative Properties Behavior of ionic solutions Ionic and molecular compounds behave differently when dissolved in water Dissociation - Ions separate from one another when dissolved in water Dissociation is indicated by equations balanced by charge and atoms In 100% dissociation, a solution of 1 mol of NaOH dissociates to 1mol Na +  and 1 mol OH + Solubility and equations Compounds of low solubility are considered insoluble Dissociation equations cannot be written for insoluble compounds In a double-replacement reaction, reactants are both soluble Usually one product is insoluble To see if a d-r reaction occurs, look at possible precipitates Determine if one precipitate is insoluble  If so, then the reaction will take place Reactions of ions are represented by net ionic equation Used instead of formula equations NIE includes compounds and ions that undergo a chemical change in aqueous solution Soluble ions compounds are shown as dissociated ions Precipitates are shown as solids Spectator ions- ions that do not take part or change in the reaction These ions are eliminated in a net ionic equation When comparing concentration, different substances are not comparable When one mole of a non-electrolyte dissolves in a solvent, one mole of solute particles are  present When one mole of an electrolyte dissolves because it ionizes, there will be more than one mole 
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This note was uploaded on 09/28/2010 for the course CHEM Chemistry taught by Professor Plants during the Spring '10 term at Clear Creek.

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Chapter Fourteen -

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