Question

The Ka for HOBr is 2.4 x 10-9. Thus, you can report the pKb for OBr– as


a) 4.2 x 10-6
b) 9.62
c) 5.38
d) 8.62
e) 1.38

help!

Answer 1

Have you forgotten KaKb = Kw?
Convert between Ka and Kb easily.