Question

Tutored Practice Problem 17.2.3 COUNTS TOWARDS GRADE Calculate pH of a weak base/conjugate acid buffer solution A 0.420-M aqueous solution of C5H;N (pyridine) has a pH of 9.40. Calculate the pH of a buffer solution that is 0.420 M in C5H5N and 0.178 M in C;H5NH pH- Consider how to prepare a buffer solution with pH 3.03 (using one of the weak acid/conjugate base systems shown here) by combining 1.00 L of a 0.370-M solution of weak acid with 0.254 M potassium hydroxide pKa 3.35 7.46 9.40 Ka 4.5 x 104 3.5 x 10-8 4.0 x 10-10 Weak Acid HNO2 HCIO HCN Conjugate Base NO2 CIO' CN- How many L of the potassium hydroxide solution would have to be added to the acid solution of your choice? Determine the pH change when 0.079 mol HI is added to 1.00 L of a buffer solution that is 0.433 M in HCIO and 0.372 M in CIO pH after addition - pH before addition pH change Tutored Practice Problem 17.2.4 Use the Henderson-Hasselbalch equation to calculate pH of a buffer solution

Multi part question

Answer 1

pH- 14-1.4-46 : 9.82 t 6178 - 8.44 : 9:2 .42 :ド7: 14-8-49 : 5:56 : 8.82