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can someone please explain to me in dummy language this question... Why is the graph of transmittance versus concentration not linear?...

Thankyou very much

  • chemistry -

    I suppose the easiest way to look at that absorbance = A = abc and that is a linear graph. But A = log (1/T) so the graph of T versus concn can't be linear because it is a log term.

  • chemistry -

    In dummy language, it is not linear because it is logarithmic by definition.

    which is linear with concentration.

    but absorbance=10*log P/Po=
    =10log 1/Transmittance
    because transmittance=P/Po

    which leads to T=e-k*concentration
    Thus, it is not linear.

  • chemistry -

    why is the hydrous copper sulfate heated to constant weight?

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