3. You need to prepare 100 mL of a 0.200 M acetate buffer at pH 5.00. The pka of acetic acid is 4.756 and the density of liquid acetic acid is 1.049 g/mL. You have pure liquid acetic acid (CH3CO2H; FW = 60.05 g/mol) and pure sodium acetate trihydrate (Na+CH3CO²- 3 H₂O; FW = 136.08 g/mol) available to you to prepare the buffer. a. Calculate the volume (in mL) of liquid acetic acid that must be added to the 100 mL volumetric flask. b. Calculate the mass (in grams) of sodium acetate that you would need to add to the 100 mL flask to prepare 100 mL of a pH 5.00 acetate buffer.

3. You need to prepare 100 mL of a 0.200 M acetate buffer at pH 5.00. The pka of acetic acid is 4.756 and the density of liquid acetic acid is 1.049 g/mL. You have pure liquid acetic acid (CH3CO2H; FW = 60.05 g/mol) and pure sodium acetate trihydrate (Na+CH3CO²- 3 H₂O; FW = 136.08 g/mol) available to you to prepare the buffer. a. Calculate the volume (in mL) of liquid acetic acid that must be added to the 100 mL volumetric flask. b. Calculate the mass (in grams) of sodium acetate that you would need to add to the 100 mL flask to prepare 100 mL of a pH 5.00 acetate buffer.

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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