O Macmillan Learning Attempt 3 Repeat Experiment #2 using acetic acid unknown #2. Begin by measuring 5.00 mL of the unknown acetic acid solution using a 10 mL graduated cylinder. Add this to a 150 mL Erlenmeyer flask, along with 75.0 mL of water and 2 drops of phenolpthalein. Titrate the unknown using the 0.100 M NaOH solution. Perform this titration in triplicate, and report the average concentration of acetic acid determined from the three titrations. average concentration: M

O Macmillan Learning Attempt 3 Repeat Experiment #2 using acetic acid unknown #2. Begin by measuring 5.00 mL of the unknown acetic acid solution using a 10 mL graduated cylinder. Add this to a 150 mL Erlenmeyer flask, along with 75.0 mL of water and 2 drops of phenolpthalein. Titrate the unknown using the 0.100 M NaOH solution. Perform this titration in triplicate, and report the average concentration of acetic acid determined from the three titrations. average concentration: M

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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Kindly provide answers to those underlined red. Please show complete solutions.
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You want to determine the concentration of NaCl in a water. In preliminary analysis, it appears to be saline water with a NaCl content of approximately 4%. Should you dilute the sample if your titrant has a concentration of 0.1 M and you want to spend 25 mL of sample?
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B. Determining the Composition of a Mixture of Sodium Chloride and Sodium Nitrate Partner I Prepare a solution of sodium chloride + sodium nitrate and indicator. Obtain a dropper bottle of potassium chromate (indicator) solution. To a clean and dry 125 mL Erlenmeyer flask, add about 40 mL of water and 8 drops of indicator solution. Weigh out approximately 0.05 grams of sodium chloride + sodium nitrate solid and record its exact mass. Dissolve the solid in the solution from step 1, stirring with a stirring rod to ensure complete dissolution. Determine and record the total mass of the Erlenmeyer flask and solution, noting the balance that you use to weigh. Rather than measuring the volume of silver nitrate solution added as in Part A, we will measure the mass of titrant added and make use of the weight-percentage concentration of silver nitrate in calculations. Prepare the silver nitrate solution. Obtain about 15 mL of 1.70% w/w silver nitrate solution in a 50 mL beaker. Designate a…