8. What change in pH would be observed upon the addition of 0.02 mol of HCl solution to (a) the buffered solution above and (b) 1 L of pure water? (Hint: Which buffer component responds to the presence of the strong acid?)

Chemistry by OpenStax (2015-05-04)
1st Edition
ISBN:9781938168390
Author:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser
Publisher:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser
Chapter14: Acid-base Equilibria
Section: Chapter Questions
Problem 100E: What mass of NH4Cl must be added to 0.750 L of a 0.100-M solution of NH3 to give a buffer solution...
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Question 8 is what i need help with answering it is in relation to Question 7 that i have attached below, the pH of the buffered solution was calculated to be 10.45 (Ans. Question 7)

8. What change in pH would be observed upon the addition of 0.02 mol of HCl solution
to (a) the buffered solution above and (b) 1 L of pure water? (Hint: Which buffer
component responds to the presence of the strong acid?)
Transcribed Image Text:8. What change in pH would be observed upon the addition of 0.02 mol of HCl solution to (a) the buffered solution above and (b) 1 L of pure water? (Hint: Which buffer component responds to the presence of the strong acid?)
7. Calculate the pH of a buffered solution that is prepared by dissolving 0.3 mol of
%3D
NaHCO3 and 0.45 mol of Na2CO3 in 1 L of water at 298 K? (NaHCO3 pKa = 10.27)
Transcribed Image Text:7. Calculate the pH of a buffered solution that is prepared by dissolving 0.3 mol of %3D NaHCO3 and 0.45 mol of Na2CO3 in 1 L of water at 298 K? (NaHCO3 pKa = 10.27)
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