The K_bof ammonia is 1.76 × 10^-⁵. The pH of a buffer prepared by combining 50.0 mL of 1.00 M ammonia and 45.0 mL of 1.00 M ammonium nitrate is ________. A)4.632 B)9.291 C)4.742 D)9.372 E)none of the above

Question

Quizplus · Accepted Answer

The pH of the buffer can be calculated using the Henderson-Hasselbalch equation. The pKa is calculated from the Kb of ammonia, and the concentrations of ammonia and ammonium ion are used to find the pH.

The Kb of Ammonia Is 1

The K_bof Ammonia Is 1