# Chemistry pH problem

1. May 3, 2006

### Ukitake Jyuushirou

What is the pH of a solution 0.1 M in ammonia and 0.141 M in ammonium chloride? (Kb for ammonia is 1.8e-5)

i would really appreciate if someone can pt me in the right direction on how to solve this qn

2. May 3, 2006

It will help if you write out the equation for $$K_{b}$$.

Also, remember that ammonium chloride is soluble in water and dissociates completely, producing ammonium and chloride ions.

3. May 3, 2006

### Staff: Mentor

This is buffer question. You may use Henderson-Hasselbalch equation to solve it.