A 150 L Buffer Solution Is 0

Multiple Choice

A 1.50 L buffer solution is 0.250 M in HF and 0.250 M in NaF.Calculate the pH of the solution after the addition of 0.100 moles of solid NaOH.Assume no volume change upon the addition of base.The K_a for HF is 3.5 × 10^-4.

A) 3.22
B) 3.82
C) 3.69
D) 3.09
E) 4.46