A 1. 00 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 100. 0 mL of 1. 00 M HCI. The Ka for HF is 3. 5 × 10-4.
A) 4. 11
B) 2. 78
C) 3. 82
D) 3. 46 E) 3. 09 3