9 rinse your 2500 ml volumetric pipet several times

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Unformatted text preview: h your volumetric flask • with plenty of tap water and several portions of deionized water. Let the flask dry at room temperature. 8. Pour about 50 mL of the dilute vinegar solution in your 100 mL beaker •. 9. Rinse your 25.00 mL volumetric pipet Ž several times with portions of diluted vinegar from your beaker. Be careful not accidentally add any water to the diluted vinegar solution in the beaker. 10. Carefully pipet 25.00 mL Ž of diluted vinegar solution into the 250 mL Erlenmeyer flask •. 11. Add about 50 mL of deionized water to the Erlenmeyer flask •. 12. Add 2 drops of phenolphthalein indicator solution and swirl the flask to thoroughly mix the solution. 13. Rinse your 50 mL buret ‘ several times with a few milliliters of your standardized sodium hydroxide solution. 14. Fill the buret ‘ with your standardized sodium hydroxide solution. a. Make sure that the tip does not have any air bubbles. b. Record the volume or the buret to the nearest 0.01 mL. 15. Titrate the acid sample to a fa...
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