KF has PH higher than 7 why KBr is neutral?

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KF has PH higher than 7 why KBr is neutral?

Postby Chem_Mod » Sun Aug 21, 2011 12:02 pm

The pH for the KF solution is above 7, but the pH for KBr is neutral. I don't understand why they're so different.

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Re: KF has PH higher than 7 why KBr is neutral?

Postby Chem_Mod » Sun Aug 21, 2011 12:02 pm

HF is a weak acid, so F- from KF will pick up a proton from water to produce OH-.


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