What is the pH of a solution that contains 0.120M HF and 0.250 M HBrO? Use "x is small" approximation.
Kₐ for HF=3.5×10⁻⁴
Kₐ for HBrO = 2.8×10-9
a. 3.35
b. 4.71
c. 1.25
d. 2.19