The K_b of Ammonia Is 1

Multiple Choice

The K_b of ammonia is 1.77 × 10^{- 5}. The pH of a buffer prepared by combining 50.0 mL of 1.00 M ammonia and 50.0 mL of 1.00 M ammonium nitrate is .

A) 7.00
B) 9.25
C) 9.37
D) 4.74
E) 4.63