Determining pH of aqueous KBr

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Masahiro Yabe 2H
Posts: 30
Joined: Fri Sep 25, 2015 3:00 am

Determining pH of aqueous KBr

Postby Masahiro Yabe 2H » Wed Dec 02, 2015 9:14 pm

Why does aqueous KBr has neutral pH?

Tiffany Chen 2E
Posts: 26
Joined: Fri Sep 25, 2015 3:00 am

Re: Determining pH of aqueous KBr

Postby Tiffany Chen 2E » Wed Dec 02, 2015 11:34 pm

If you look at KBr, it gives off neither H+ ions nor OH- ions, because K+ does not act as an acid and Br- is a neutral conjugate base, causing KBr overall to be neutral.
Last edited by Tiffany Chen 2E on Fri Dec 04, 2015 10:04 pm, edited 1 time in total.

Chem_Mod
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Re: Determining pH of aqueous KBr

Postby Chem_Mod » Wed Dec 02, 2015 11:42 pm

KBr dissociates into K+ and Br-. K+ is a neutral cation and Br- is the conjugate base of a strong acid so it is also neutral. Since neither ion reacts further, the solution will also be neutral.


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