2. a) Calculate the pH of 0.12 mol/L ethanoic acid (K₂ = 1.7 x 105 mol/L). b) Calculate the mass of sodium ethanoate (CH3COONa) which must be added to 500 mL of the solution to give a buffer solution of pH = 4.60. c) Calculate the pH of this solution after 0.01 moles of HCI are added.
2. a) Calculate the pH of 0.12 mol/L ethanoic acid (K₂ = 1.7 x 105 mol/L). b) Calculate the mass of sodium ethanoate (CH3COONa) which must be added to 500 mL of the solution to give a buffer solution of pH = 4.60. c) Calculate the pH of this solution after 0.01 moles of HCI are added.
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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