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What is the ratio of A / HA in for the buffer chosen for part C before adding acid or base? How many moles of A and HA are present in the solution? Remember that the volume used was 50mL. I

What is the ratio of A / HA in for the buffer chosen for part C before adding acid or base? How many moles of A and HA are present in the solution? Remember that the volume used was 50mL. I

Chemistry
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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need help with questions 2-4.
Buffer Chosen: PART C: Why is a buffer a buffer? Water Sodium Citrate pH before addition of acid or base 4.76 6.13 Did you add acid or base? Acıd Acid pH after the addition of acid or base 473 2.11 Net change in pH 0.03 4.02 2. What is the ratio of A / HA in for the buffer chosen for part C before adding acid or base? How many moles of A and HA are present in the solution? Remember that the volume used was 50mL. I 3. Calculate the theoretical pH of the buffer chosen for Part C after adding 0.5mL of 1M HCI or NaOH. 0.0005mol if HCL is completely dissociated Initial moles: 51.3 x 50ml= 4. Calculate the % error between the theoretical pH and measured pH (the one recorded in the table) of the buffer in Part C after adding 0.5ml, of 1M HCl or 1M NAOH
Transcribed Image Text:Buffer Chosen: PART C: Why is a buffer a buffer? Water Sodium Citrate pH before addition of acid or base 4.76 6.13 Did you add acid or base? Acıd Acid pH after the addition of acid or base 473 2.11 Net change in pH 0.03 4.02 2. What is the ratio of A / HA in for the buffer chosen for part C before adding acid or base? How many moles of A and HA are present in the solution? Remember that the volume used was 50mL. I 3. Calculate the theoretical pH of the buffer chosen for Part C after adding 0.5mL of 1M HCI or NaOH. 0.0005mol if HCL is completely dissociated Initial moles: 51.3 x 50ml= 4. Calculate the % error between the theoretical pH and measured pH (the one recorded in the table) of the buffer in Part C after adding 0.5ml, of 1M HCl or 1M NAOH
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