ChemProcedure9

ChemProcedure9 - Karlo Natonton Chemistry 153-45 TA:...

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Karlo Natonton Chemistry 153-45 TA: Jessica Experiment 9 November 13, 2009 Part A: Preparing Standard 0.1 M NaOH 1. Obtain a 500mL bottle with cap, ring stand, 50mL buret, buret clamp and buret card. 2. Rinse 500mL bottle with deionized water. 3. Fill bottle with 0.1M NaOH. 4. Clean buret by filling and draining with deionized water. 5. Rinse buret with two 10mL portions of NaOH solution. a. Mount buret on ring stand and use buret clamp. b. Fill with 0.1M NaOH to above the 0.0mL mark using a funnel. c. Apply short bursts of solution to rid of air bubbles trapped in tip. 6. Obtain and weigh a 250mL Erlenmeyer flask. Record mass. 7. Place 0.700 to 0.750 g of potassium hydrogen phthalate (KHP) into the flask. 8. Weigh and record mass of both flask and KHP sample. 9. Find mass of KHP by finding difference in masses. 10. Dissolve KHP in 50mL of deionized water. 11. Add 3-5 drops of phenolphthalein to the solution. 12. Calculate the approximate volume of 0.1M NaOH required to neutralize the
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This note was uploaded on 04/18/2011 for the course CHEM 153 taught by Professor Durham during the Fall '10 term at Saint Louis.

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ChemProcedure9 - Karlo Natonton Chemistry 153-45 TA:...

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