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[E11A.2(a)] The molar absorption coefficient of a substance dissolved in hexane is known to be 723dm3mol1cm1 at 260nm. Calculate the percentage reduction in intensity when

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[E11A.2(a)] The molar absorption coefficient of a substance dissolved in hexane is known to be 723dm3mol1cm1 at 260nm. Calculate the percentage reduction in intensity when ultraviolet radiation of that wavelength passes through 2.50mm of a solution of concentration 4.25mmoldm3

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