Lecture 21-Acid bases

Lecture 21-Acid bases

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Unformatted text preview: c2 V2 volume of original soluTon (L) concentraTon of diluted soluTon (mol L ­1) Example •  What volume of a 0.200 M K2Cr2O7 soluTon would be required to prepare 100 mL of 0.040 M K2Cr2O7? c1V1 = c2V2 V1 = (c2V2)/c1 V1 = 0.02 L = 20 mL TitraTons laboratory (Acids & Bases Lab) •  Before the lab: –  Read the introducTon •  You will be marked on: –  Laboratory notebook –  Performance in the lab and accuracy of the TtraTon TitraTons •  An analyTcal procedure in which a solute in a soluTon of known concentraTon reacts with a known stoichiometry with a substance whose concentraTon is to be determined. TitraTon requirements •  TitraTons must meet several requirements 1.  We must know the equaTon for the reacTon 2.  The reacTon must be rapid and complete 3.  The point at which the reactants combine exactly is the equivalence point (the point at which the indicator changes co...
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This note was uploaded on 05/28/2012 for the course CHEM 101 taught by Professor Ooo during the Spring '12 term at W. Alabama.

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