What evidence indicates that a base dissociates in water?
We know a base dissociates in water if the solution is able to conduct electricity.
When bases dissociate in water, two ions are formed.
For example, when
These ions are both charged and able to move in solution. So, because it is a charge carrier, it will be able to conduct electricity.
This means that we can test whether a base dissociates in water or not by running an electric current through it.