Why is Ba(OH)2 a base?

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Chem_Mod
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Why is Ba(OH)2 a base?

Postby Chem_Mod » Thu May 16, 2013 12:03 pm

Question: If bronsted bases are H+ ion acceptors, why is Ba(OH)2 a base if the reaction is Ba(OH)2(aq)-->Ba(aq)+2OH-(aq), as is written for problem 11.27? Isn't this just a dissociation? I don't see how an H+ is being donated or accepted here. Thank you.

Chem_Mod
Posts: 19157
Joined: Thu Aug 04, 2011 1:53 pm
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Re: Why is Ba(OH)2 a base?

Postby Chem_Mod » Thu May 16, 2013 12:03 pm

Answer: Ba(OH)2 dissociates OH- which can absorb H+. That's why Ba(OH)2 is a base. In aqueous solution, anything donates OH- is considered to be a base.


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