DiazJ_Exp7

DiazJ_Exp7 - Experiment 7: Reactions in Aqueous Solutions:...

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Experiment 7: Reactions in Aqueous Solutions: Strong Acids and Bases 10-19-11 Joel Diaz 10-26-11 Chemistry 1045L-25 Ryan Riskowski
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Purpose The purpose of this experiment is to demonstrate the relationship between pH and an acid or base. It does so by diluting the base or acid multiple times and measuring its pH and concentration after each dilution. It also combines the dilutions of acid and base in order to demonstrate how they neutralize each other. Procedure For the experiment, the section on preparing the salt solution and the experimental yield was removed since all the liquid did not evaporate. The pH meter was calibrated and four serial dilutions were performed for NaOH and HCl. The pH was recorded after each dilution. After, each dilution for NaOH was combined with the dilution for HCl and the pH was measured. Data Table 1. Acid (HCl) Dilution 1 Dilution 2 Dilution 3 Dilution 4 Concentration 2.0*10^-2 M 8.0*10^-4 M 3.2*10^-5 M 1.3*10^6 M Experimental pH 1.87 pH 3.52 pH 7.50 pH 7.69 pH Theoretical pH
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This note was uploaded on 04/05/2012 for the course CHM 1045 taught by Professor Bush during the Fall '08 term at FSU.

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DiazJ_Exp7 - Experiment 7: Reactions in Aqueous Solutions:...

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