Homework Help is Here – Start Your Trial Now!
Science
Chemistry
3) An undergraduate student is making 1.5 L of a 1.5 M potassium phosphate buffer solution with a pH = 6.1 (pKa of H2PO, is 7.21) using 3 M KH;PO, and 3 M K2HPO4. How many milliliters of 3M K2HPO, will be needed to make this solution? %3D

3) An undergraduate student is making 1.5 L of a 1.5 M potassium phosphate buffer solution with a pH = 6.1 (pKa of H2PO, is 7.21) using 3 M KH;PO, and 3 M K2HPO4. How many milliliters of 3M K2HPO, will be needed to make this solution? %3D

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...
See similar textbooks
icon
Related questions
Question

Number 3

1) What is thei when pH=7.83? 2) A weak acid has a K= 6.62 x 10-5. What is the pH of a solution of this acid that is 2.65 M? 3) An undergraduate student is making 1.5 L of a 1.5 M potassium phosphate buffer solution with a pH = 6.1 (pKa of H2PO4 is 7.21) using 3 M KH2PO4 and 3 M K,HPO4. How many %3D milliliters of 3 M K;HPO, will be needed to make this solution?
Transcribed Image Text:1) What is thei when pH=7.83? 2) A weak acid has a K= 6.62 x 10-5. What is the pH of a solution of this acid that is 2.65 M? 3) An undergraduate student is making 1.5 L of a 1.5 M potassium phosphate buffer solution with a pH = 6.1 (pKa of H2PO4 is 7.21) using 3 M KH2PO4 and 3 M K,HPO4. How many %3D milliliters of 3 M K;HPO, will be needed to make this solution?
Expert Solution
Step 1

A buffer is a solution which resist any change in pH on adding a small amount of acid or base .

 

it is made up of weak acid and its conjugate salt or weak base and its conjugate salt.

steps

Step by step

Solved in 3 steps with 1 images

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
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
SEE MORE TEXTBOOKS