Ka and Kb Video Lessons

Video Thumbnail


Problem: Given that Kb for NH3 is 1.8x10-5 calculate Ka for NH4+ 

FREE Expert Solution

We are asked to find Ka for NH4+. NH4+ is the conjugate acid of the weak base NH3

NH3              +     H2O      ⇌               NH4+     +     OH-
(weak base)              (acid)             (conjugate acid)     (conjugate base) 

Hence, the Ka of NH4+ can be calculated from the Kb of NH3. Ka and Kb are related by the autoionization constant of water (Kwby the following equation:

83% (15 ratings)
View Complete Written Solution
Problem Details

Given that Kb for NH3 is 1.8x10-5 calculate Ka for NH4

Frequently Asked Questions

What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Ka and Kb concept. You can view video lessons to learn Ka and Kb. Or if you need more Ka and Kb practice, you can also practice Ka and Kb practice problems.

What professor is this problem relevant for?

Based on our data, we think this problem is relevant for Professor Fakhreddine's class at TEXAS.