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April 19, 2015

Homework Help: health sciences

Posted by rani tabasum on Saturday, April 14, 2012 at 6:33am.

d. You want to determine the amount of Chlorophyll (Molecular Weight: 893.51 g/mol) in a 50 ml marine sample. Before analysis by UV spectroscopy, 5 ml of the solution was diluted to 80 ml with DI water. The diluted sample was analysed using UV spectroscopy and had an absorbance of 0.320 at 670 nm. What was the amount in mg of Chlorophyll in the original sample?

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