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Topic: Why do barium and sulfate only react under acidic conditions?  (Read 1553 times)

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Offline ASidd

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Why do barium and sulfate only react under acidic conditions?
« on: October 30, 2012, 11:08:23 AM »
We did a precipitation reaction with barium chloride and copper sulphate solution today in class. To one of the test-tubes we added HNO3 and the other one NaOH.
Only the test-tube with HNO3 formed precipitate.
Can someone explain why barium sulphate only formed under acidic conditions?
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