Chem 287_Chapter 6

Chem 287_Chapter 6 - 287 Chapter 6: Good Titrations...

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1 287 Chemistry Salin Chapter 6 Page 1 287 Chapter 6: Good Titrations Titration Indicator Compound which changes abruptly signaling end Equivalence Point Exact amount of titrant for stiochiometric reaction w/analyte 287 Chemistry Salin Chapter 6 Page 2 Strong Acid with Base Cartoon time series H + basic basic basic Time H 2 O OH -
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2 287 Chemistry Salin Chapter 6 Page 3 Strong Acid/Base Cartoon general situation H + H 2 O OH - basic neutral acidic Equivalence Point Acid responsive Indicator Shows 287 Chemistry Salin Chapter 6 Page 4
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3 287 Chemistry Salin Chapter 6 Page 5 Notes Show Savant demo? http://www.academysavant.com/elearning/P LS-199%20Demo/START-wn.html http://www.academysavant.com/elearning/PLS-199%20Demo/START-wn.html 287 Chemistry Salin Chapter 6 Page 6 287 Chapter 6: Good Titrations Equivalence Point Exact amount of titrant for stiochiometric reaction w/analyte Actually measure “ end point Why isn’t the end point the equivalence point? The difference is the “ titration error
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4 287 Chemistry Salin Chapter 6 Page 7 Terms Titration Error Diff between end point and equivalence point Do a “ blank titration ” to determine how much it takes to see the end point Primary Standard Reagent sufficiently pure can weigh out and use for calibration
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Chem 287_Chapter 6 - 287 Chapter 6: Good Titrations...

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