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5. a) Calculate the pH of a buffer solution which is 0.1 mol/L with respect to HCN (K₁ = 4.9 x 10-¹0 mol/L) and 0.8 mol/L with respect to sodium cyanide. b) Calculate the pH after 0.05 moles of HCI are added to 1 L of this buffer. c) Calculate the pH after 0.05 moles of NaOH are added to 1 L of this buffer. d) Calculate the pH after 0.2 moles of NaOH are added to 1 L of this buffer.

5. a) Calculate the pH of a buffer solution which is 0.1 mol/L with respect to HCN (K₁ = 4.9 x 10-¹0 mol/L) and 0.8 mol/L with respect to sodium cyanide. b) Calculate the pH after 0.05 moles of HCI are added to 1 L of this buffer. c) Calculate the pH after 0.05 moles of NaOH are added to 1 L of this buffer. d) Calculate the pH after 0.2 moles of NaOH are added to 1 L of this buffer.

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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= 5. a) Calculate the pH of a buffer solution which is 0.1 mol/L with respect to HCN (Ka 4.9 x 10-¹0 mol/L) and 0.8 mol/L with respect to sodium cyanide. b) Calculate the pH after 0.05 moles of HCI are added to 1 L of this buffer. c) Calculate the pH after 0.05 moles of NaOH are added to 1 L of this buffer. d) Calculate the pH after 0.2 moles of NaOH are added to 1 L of this buffer.
Transcribed Image Text:= 5. a) Calculate the pH of a buffer solution which is 0.1 mol/L with respect to HCN (Ka 4.9 x 10-¹0 mol/L) and 0.8 mol/L with respect to sodium cyanide. b) Calculate the pH after 0.05 moles of HCI are added to 1 L of this buffer. c) Calculate the pH after 0.05 moles of NaOH are added to 1 L of this buffer. d) Calculate the pH after 0.2 moles of NaOH are added to 1 L of this buffer.
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