Summer 2007 Ch 4

Summer 2007 Ch 4 - Chapter 4 The Major Classes of Chemical...

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Chapter 4 The Major Classes of Chemical Reactions
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Electron distribution in molecules of H 2 and H 2 O.
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The dissolution of an ionic compound animation
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The electrical conductivity of ionic solutions animation
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Sample Problem 4.1 Determining Moles of Ions in Aqueous Ionic Solutions PROBLEM: How many moles of each ion are in 2 mol of a potassium perchlorate solution?
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Sample Problem 4.2 Determining the Molarity of H + Ions in Aqueous Solutions of Acids PROBLEM: How many moles of H + (aq) are present in 451 mL of 3.20 M hydrobromic acid?
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Writing Equations for Aqueous Ionic Reactions The molecular equation shows all of the reactants and products as intact, undissociated compounds. The total ionic equation shows all of the soluble ionic substances dissociated into ions. The net ionic equation eliminates the spectator ions and shows the actual chemical change taking place.
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The reaction of Pb(NO 3 ) 2 and NaI (animation). double displacement reaction (metathesis) NaI( aq ) + Pb(NO 3 ) 2 ( aq ) PbI 2 ( s ) + NaNO 3 ( aq ) 2NaI( aq ) + Pb(NO 3 ) 2 ( aq ) PbI 2 ( s ) + 2NaNO 3 ( aq ) 2Na + ( aq ) + 2I - ( aq ) + Pb 2+ ( aq ) + 2NO 3 - ( aq ) PbI 2 ( s ) + 2Na + ( aq ) + 2NO 3 - ( aq ) 2 Na I ( aq ) + Pb ( NO 3 ) 2 ( aq ) PbI 2 ( s ) + 2 NaNO 3 ( aq )
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Predicting Whether a Precipitate Will Form 1. Note the ions present in the reactants. 2.
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This note was uploaded on 05/31/2008 for the course CHEM 1111 taught by Professor Robertparson during the Spring '08 term at Colorado.

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Summer 2007 Ch 4 - Chapter 4 The Major Classes of Chemical...

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