6_Smith_William(Jake)

6_Smith_William(Jake) - William (Jake) Smith CHE 111-016...

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William (Jake) Smith CHE 111-016 Fariba Karimi 11-6-11 Kasey Rocazella Titrations and Calibrations Introduction of Titration Lab Objectives - Learn what titration is and how to use it - Students learn how to use work station, lab equipment and pH electrode - Learn what an equivalence point is - Learn how to read an equivalence point on a graph - Find the molarity of a substance - Using stoichiometry balance equations Procedure of Titration The full lab procedure can be found in the online manual. (Soult, pgs. 71-82) Acid-Base Titration Discussion In the experiment a base and an acid were mixed. The performed molecular equation of the titration in the experiment was: HCl(aq) + NaOH(aq) NaCl(aq) + H2O(l) The ionic equation was: H+(aq) + Cl-(aq) + Na+(aq) + OH- Na+(aq) +Cl-(aq) + H20(l) The Net Ionic equation was: H+(aq) + OH-(aq) H20(l) There were two titrations conducted in the lab. The proposed hypothesis expected the HCl titrated with NaOH would have an initially low pH value of the acidic solution. The pH changes very slowly as the base is added until the equivalence point is almost
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This note was uploaded on 02/02/2012 for the course CHEMSITRY 105 taught by Professor Soult during the Fall '11 term at Kentucky.

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6_Smith_William(Jake) - William (Jake) Smith CHE 111-016...

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