A Critical Study of Acid Base Reactions

A Critical Study of Acid Base Reactions - A Critical Study...

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A Critical Study of Acid Base Reactions Purpose: The purpose of experiment 18, is to determine the equilibrium constant discovered throughout three acid base titration using titration curves and measured pH values. Procedure: 1. Set up and calibrate the pH meter. Standardization of NaOH Solution: 1. Normalize buret with NaOH solution. Then prepare the buret for the experiment. Read and record the volume of NaOH in the buret. 2. Weigh out 1.2g of KHP. 3. Place KHP into 125mL Erlenmeyer flask, add 50mL DI water, and 3-4 drops of phenolphthalein. 4. Add the NaOH quickly at first, then slowing down, as the equivalence point is reached. Swirl the solution, a small pink color will appear, as the equivalence point is reached. When the pink color lasts for thirty seconds, the equivalence point has been reached. 5. Carefully touch the tip of the buret to the inside of the flask, ensuring that the liquid reaches the liquid inside the flask. 6.
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This note was uploaded on 04/07/2008 for the course CHEM 1114 taught by Professor Prof.adams during the Spring '08 term at SMU.

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A Critical Study of Acid Base Reactions - A Critical Study...

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