Procedure: Step 1: Pipet 25 mL of 0.1 M HCl into three 250 mL Erlermeyer flasks. Step 2: Pipet 75 mL of distilled water into each of the 250 mL Erlermeyer flask. Step 3: Add 3 drops of phenolphthalein indicator into each of the 250 mL Erlermeyer flasks. Step 4: Record the initial volume of the 0.1 M NaOH in the burette. Step 5: Titrate the HCI solution in the 250 mL Erlermeyer flasks using the standardized 0.1 M NaOH solution in the burette until the faintest pink persists for 30 seconds. Step 6: Record final volume of the 0.1 M NaOH in the burette. Step 7: Repeat the titration for the other two HCl solutions in 250 mL Erlermeyer flask using the same 0.1 M NaOH solution. Standardizing the 0.1 M HCI using standardized 0.1M sodium hydroxide solution No. of titration Initial volume of 0.1 M NaOH (mL) Final volume of 0.1 M NaOH (mL) Total volume of 0.1 M NaOH used to react with HCI (mL) Actual HCI molarity (M) (Round to 3 decimal points) Find actual HCI molarity 1 1 21.8 20.8 2 21.8 43.3 21.5 3 12.4 33.4 21

Procedure: Step 1: Pipet 25 mL of 0.1 M HCl into three 250 mL Erlermeyer flasks. Step 2: Pipet 75 mL of distilled water into each of the 250 mL Erlermeyer flask. Step 3: Add 3 drops of phenolphthalein indicator into each of the 250 mL Erlermeyer flasks. Step 4: Record the initial volume of the 0.1 M NaOH in the burette. Step 5: Titrate the HCI solution in the 250 mL Erlermeyer flasks using the standardized 0.1 M NaOH solution in the burette until the faintest pink persists for 30 seconds. Step 6: Record final volume of the 0.1 M NaOH in the burette. Step 7: Repeat the titration for the other two HCl solutions in 250 mL Erlermeyer flask using the same 0.1 M NaOH solution. Standardizing the 0.1 M HCI using standardized 0.1M sodium hydroxide solution No. of titration Initial volume of 0.1 M NaOH (mL) Final volume of 0.1 M NaOH (mL) Total volume of 0.1 M NaOH used to react with HCI (mL) Actual HCI molarity (M) (Round to 3 decimal points) Find actual HCI molarity 1 1 21.8 20.8 2 21.8 43.3 21.5 3 12.4 33.4 21

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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