Lab Report #5 - end point was reached when a slight pink...

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Procedure: To determine the acid content of our  Sprite  sample, we began by mixing 3 solutions of ~0.06g  KHP (Potassium Hydrogen Phthalate) and 20ml of water into Erlenmeyer flasks.  To each of  these we added approximately three drops of the phenolphthalein indicator.  Next, we filled a  50ml buret with 50ml of NaOH.  The NaOH would serve as our  analyte solution .  To titrate the  KHP solution, we swirled the solution and added the NaOH until an  end point  was reached.  The 
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Unformatted text preview: end point was reached when a slight pink color change in the KHP was noted for at least 10 seconds. We repeated this with all three of the KHP solutions. We then repeated these steps for three Sprite samples. Instead of a KHP solution, we used three separate volumes of Sprite . We added approximately three drops of phenolphthalein indicator and titrated it with NaOH from the buret. . Conceptual Basis of Calculation:...
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This note was uploaded on 03/29/2011 for the course CHEM 115 taught by Professor March during the Spring '08 term at University of Alabama at Birmingham.

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