Compute the mass in milligrams of quinine

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Quinine in a 1.664 g antimalarial tablet was dissolved in sufficient 0.10 M HCI to give 500 mL of solution. A 20.00-mL aliquot was then diluted to 100.0 mL with the acid. The fluorescence intensity for the diluted sample at 347.5 nm provided a reading of 245 on an arbitrary scale. A standard l00-ppm quinine solution registered 125 when measured under conditions identical to those for the diluted sample. Calculate the mass in milligrams of quinine in the tablet.

Reference no: EM13225756

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