Ca(OH)2 (1 Viewer)

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Wait how can this be a strong base if it is a slightly insoluble salt?

 

[Masaken]

Wait how can this be a strong base if it is a slightly insoluble salt?

cos even tho it's slightly insoluble what does dissolve ionises completely 100% into Ca2+ and OH- ions, it just accounts for how much of what can be dissolved is ionisable. 100% ionisable doesn't have to be 100% dissolvable

 

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ahh ic cheers

 

[wizzkids]

Wait how can this be a strong base if it is a slightly insoluble salt?

You are using the Arrhenius theory of a strong base. The Brönsted-Lowry theory is not restricted to aqueous solutions. If Ca(OH)₂ is a good proton acceptor (which it is), then it is a strong base according to the latter theory.

 

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ohh right okay that makes sense cheers