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2002 Views 1 Reply Latest reply: Jan 26, 2006 12:00 AM by TomGutman RSS
Copper 64 posts since
Jan 9, 2005
Currently Being Moderated

Jan 25, 2006 12:00 AM

absorption spectrum

I have a question that confuses me, any help would be appreciated. thanks

"If a solution of a substance displayed only one absorption peak, would it be safe to
conclude that it was chemically pure or to conclude that there was only one light-absorbing
substance present? What might be a possible alternative conclusion?"
  • TomGutman Silver 10,537 posts since
    Oct 22, 2006
    Currently Being Moderated
    Jan 26, 2006 12:00 AM (in response to stellina43-disabled)
    absorption spectrum
    You can't conclude very much from the absence of peaks. All you know is that no substance in the solution has an absortion peak significantly different from the one observed within the range scanned. You could have several substances with peaks that are close enough (possibly ven identical) so as not to be resolvable.

    � � � � Tom Gutman

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