Question

a solution contains equal amounts of ammonia and ammonium chloride, and is buffered at a pH of 9.25. Which action will most strengthen the buffering capacity at this pH?

Answer 1

Doubling the amounts of both ammonia and ammonium chloride is the action that will most likely strengthen the buffering capacity of a solution that contains equal amounts of ammonia and ammonium chloride, and is buffered at a pH of 9.25.