Help! How is NaOH considered a strong base, does it even accept protons?

[mcfaker123]

Hello,

Ive been seeing it everywhere" NAOH is a strong base".
But in order for it to be strong, it has to meet the requirements which are:

-The Kb of the reaction must be high. This means that base strenght is not determined by the dissociation % of a substance.

Now I ve seen a lot of books say " NaOH is a strong base because it dissociates completely in water" But the dissociation of NaOH in water is not the same reaction as mentioned above right?So this is not a requirement for it to be a strong base!

Can anyone help me out please because im stuck.

 

Thanks in advance!

[hypervalent_iodine]

For starters, your equation is wrong, though I imagine this is a typo.

 

Secondly, this

 

This means that base strenght is not determined by the dissociation % of a substance.

 

does not follow. Have a look at the equation again. K_b is high when when the relative concentrations of [A⁺][OH^-] is higher than , which means that the more the base is able to dissociate, the higher the K_b and the stronger it is.