Chemistry Practice Problems Ka and Kb Practice Problems Solution: What is the kb of water?

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Solution: What is the kb of water?

Problem

What is the kb of water?

Solution

We’re being asked to determine the Kb of water.


Recall that water is amphoteric, it can either act as an acid or base and undergoes self-ionization (autoionization):


H2O(l) + H2O(l) ⇌ H3O+(aq) + OH-(aq)

acid        base 


Kb is the base dissociation constant and it is an equilibrium expression

When writing an equilibrium expression:

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