What is the pH of a buffer solution that contains 0.350M pyruvicacid and 0.150M sodium pyruvate? Ka = 4.1x10^-3
Select one:
A. 4.72
B. 2.82
C. 2.02
D. 2.76
What is the pH of a 100.0mL buffer solution that contains 0.215Macetic acid and 0.255M sodium acetate after 0.055 mmol HCl isadded. Assume no volume change. Ka = 1.8x10^-5.
Select one:
A. 4.61
B. 4.87
C. 5.03
D. 5.48
Calculate the change in pH after 0.010mole HCl is added of 1L of pure water at 25 degrees Celsius? Assumeno volume change.
Select one:
A. 7
B. 2
C. 5
D. 9
Calculate the change in pH of a buffersolution that originally contains 0.0500M ammonia and 0.0500Mammonium after 0.020 moles of NaOH is added to 1.0L. Assume novolume change. Kb = 1.8x10^-5 for ammonia. Hint you need pKa.
Select one:
A. 0.63
B. 0.18
C. 0.55
D. 0.37
