DePaul chem 111 lab 5

DePaul chem 111 lab 5 - Purpose The main focus of this...

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Purpose The main focus of this experiment was introducing the concept and practice of titrating solution, which is basically limiting reagent problems where a solution of one reactant with a known concentration is added to a solution of an unknown concentration. The solution with the known concentration is called a titrant (NaOH base), and the other solution is called the analyte (HCl acid). During this experiment, the concentration of sodium hydroxide is known and through careful experimentation, the concentration of hydrochloric acid must be determined with the help of n indicator called phenolphthalein. The data will be collected by slowly adding NaOH to the HCl acid, and then using the indicator to determine when the titration will be complete. The data for this experiment should yield a concentration of the analyte to be between 0.07 and 0.13 M, if done correctly. The practice of limiting reactant problems, titration, and handling the buret are all major components of this experiment. Procedure General and Analytical Chemistry 111 Lab Manual. DePaul University Department of Chemistry, Autumn 2007. Chicago, IL. Rinse buret with NaOH (3-5 mL) before starting experiment just to be safe.
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This note was uploaded on 04/09/2008 for the course CHEM 111 taught by Professor Parra during the Spring '08 term at DePaul.

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DePaul chem 111 lab 5 - Purpose The main focus of this...

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