equivalence point =/= pH7 ? why?

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Offline yinling

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equivalence point =/= pH7 ? why?
« on: 11/10/2010 05:54:43 »
hi guys,
i don't understand why the equivlence point =/= pH7
When i titrate strong acid and weak base...
plx help!

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Offline lightarrow

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equivalence point =/= pH7 ? why?
« Reply #1 on: 22/10/2010 11:32:39 »
hi guys,
i don't understand why the equivlence point =/= pH7
When i titrate strong acid and weak base...
plx help!
Which are the acid and base and what do you use to determine the pH variation, a pH-metre or an indicator?