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
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...
icon
Related questions
Question

Chemistry

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
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 3 steps

Blurred answer
Knowledge Booster
Tools in Analytical Chemistry
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.
Similar questions
  • SEE MORE QUESTIONS
Recommended textbooks for you
Chemistry
Chemistry
Chemistry
ISBN:
9781305957404
Author:
Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:
Cengage Learning
Chemistry
Chemistry
Chemistry
ISBN:
9781259911156
Author:
Raymond Chang Dr., Jason Overby Professor
Publisher:
McGraw-Hill Education
Principles of Instrumental Analysis
Principles of Instrumental Analysis
Chemistry
ISBN:
9781305577213
Author:
Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher:
Cengage Learning
Organic Chemistry
Organic Chemistry
Chemistry
ISBN:
9780078021558
Author:
Janice Gorzynski Smith Dr.
Publisher:
McGraw-Hill Education
Chemistry: Principles and Reactions
Chemistry: Principles and Reactions
Chemistry
ISBN:
9781305079373
Author:
William L. Masterton, Cecile N. Hurley
Publisher:
Cengage Learning
Elementary Principles of Chemical Processes, Bind…
Elementary Principles of Chemical Processes, Bind…
Chemistry
ISBN:
9781118431221
Author:
Richard M. Felder, Ronald W. Rousseau, Lisa G. Bullard
Publisher:
WILEY