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Topic: pH Indicators?  (Read 2994 times)

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Offline jokerboy111

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pH Indicators?
« on: August 25, 2007, 11:31:27 PM »
I just wanted to know why such a small amount (2-3 drops) of indicator is used during titrations. Does it have to do with lowering the pH of the overall solution if a large amount is added since more is dissociated and proton amounts increase?

InH ---> In- + H+
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Offline Bakegaku

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Re: pH Indicators?
« Reply #1 on: August 26, 2007, 02:43:40 AM »
I imagine it's because you don't need to use anymore.  If a few drops works, why would you add more?  Chemicals cost money, you know!  ::)
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