Instruction: Analyze each item carefully. Show all your solution in solving each problem. (1). What will be the pH when 50.0 ml of 2.00M carbonic acid is mixed 20.0 ml of 3.00 M sodium bicarbonate? The Ka of carbonic is 4.30 x 10-7. (2). For the buffer system in Problem no. 1, what will be the pH when (a) 15.0 ml of 0.500 M HCI and (b) when 15.0 ml of 0.750 M NaOH is added to the buffer? (3) How will you prepare 500 ml of 0.750 M citrate buffer with pH of 4.25 from solid citric acid (C6H8O7) and solid sodium citrate (Na3C6H5O7).The Ka of citric acid is 7.40 x 104.

Instruction: Analyze each item carefully. Show all your solution in solving each problem. (1). What will be the pH when 50.0 ml of 2.00M carbonic acid is mixed 20.0 ml of 3.00 M sodium bicarbonate? The Ka of carbonic is 4.30 x 10-7. (2). For the buffer system in Problem no. 1, what will be the pH when (a) 15.0 ml of 0.500 M HCI and (b) when 15.0 ml of 0.750 M NaOH is added to the buffer? (3) How will you prepare 500 ml of 0.750 M citrate buffer with pH of 4.25 from solid citric acid (C6H8O7) and solid sodium citrate (Na3C6H5O7).The Ka of citric acid is 7.40 x 104.

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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