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Posted by on Wednesday, July 18, 2012 at 6:29am.

3) The melting point range of an unknown substance was determined to be 120-180 degree celcius. what can you tell about the purity of the unknown

  • chemistry - , Wednesday, July 18, 2012 at 1:57pm

    Pure substances have a melting point range of 0.5-2 degrees C. So this sample must be quite impure.

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