Homework problem 12.25

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004744172
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Homework problem 12.25

Postby 004744172 » Sun Jul 30, 2017 11:05 am

What would the dissociation be for Ba(OH)2, in order to find the molarities for Ba2+, OH-, and H3O+?
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004744172
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Joined: Fri Jun 23, 2017 11:39 am

Re: Homework problem 12.25

Postby 004744172 » Sun Jul 30, 2017 11:13 am

I ve found the equation in the book. Since I found the molarity of Ba(OH)2 to be 2.5x10^-2M, and Ba2+=2.5x10^-2M, OH-=0.05M, do I just need to do Kw=[h3o+][oh-] to find the concentration for h30+?
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404768057
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Joined: Fri Jul 22, 2016 3:00 am

Re: Homework problem 12.25

Postby 404768057 » Sun Jul 30, 2017 8:38 pm

Yes, you know that Kw is 1.0x10^-14 and you have OH- so you can find H3O+ by using Kw=[H3O+][OH-]
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