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Acid or base?

  1. Sep 27, 2004 #1
    acid or base? plz help

    hi during a science lab we tesed various unknown substances to classify them as either acid or base.

    Some of the indicators that were used was:
    bromthymol blue,
    blue/red litmus paper,
    phenophthalein .

    One of the substances was acid according to 2 indicators but it was base according to the other two. Is this substance acid or base?
  2. jcsd
  3. Sep 27, 2004 #2
    What was your recorded data for this substance?
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