C curious New member Aug 13, 2009 #1 What is the pH of 1.00 L of a buffer system that contains 0.300 M hydrocyanic acid (HCN) and 0.250 M sodium cyanide (NaCN) after 0.020 mol of HCl is added? The Ka of hydrocyanic acid is 4.9 10-10. What is the pH after 0.020 mol of NaOH is added?
What is the pH of 1.00 L of a buffer system that contains 0.300 M hydrocyanic acid (HCN) and 0.250 M sodium cyanide (NaCN) after 0.020 mol of HCl is added? The Ka of hydrocyanic acid is 4.9 10-10. What is the pH after 0.020 mol of NaOH is added?
