Dear friends, Please read our latest blog post for an important announcement about the website. ❤, The Socratic Team

How does pKa relate to pKb?

1 Answer
Write your answer here...
Start with a one sentence answer
Then teach the underlying concepts
Don't copy without citing sources
preview
?

Answer

Write a one sentence answer...

Answer:

Explanation

Explain in detail...

Explanation:

I want someone to double check my answer

Describe your changes (optional) 200

2
Blaze Share
May 30, 2018

Answer:

Through the Ion constant for water.

Explanation:

pKa is just the -LogKa of Ka and pKb is -LogKb.

Ka and Kb are just dissociation constants of what they represent (Ka for acid and Kb for bases)

Thus this means that a High Ka means a "strong" weak acid and a low Ka means a "weak" weak acid. And the pKa is the same but contradicting. High pKa means "weak" weak acid and low pKa means "strong" weak acid.

The same goes for Kb and pKb but just for base.

Ka and Kb are usually large numbers, and as to create smaller numbers we use pKa and pKb.

Ka can relate to Kb through the ionic constant for water (since water can be both a sour and a base depending on what you are working with). Since pKa and pKb are the same (but -Log form of) as Ka and Kb, they relate similarly.

Was this helpful? Let the contributor know!
1500
Impact of this question
188 views around the world
You can reuse this answer
Creative Commons License