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

mcfaker123
in Homework Help

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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 6qvtA.pngmust 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!

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. Kb 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 Kb and the stronger it is.

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