Chemistry, 02.10.2019 20:00 addidas234cs

The following information relates to question 9 below. an unknown quinine bisulfate sample was examined by spectrofluorometric analysis using the following procedure. a quinine bisulfate tablet (label claim 300 mg of quinine bisulfate) was weighed, crushed, and powder equal to one-third of a tablet was dissolved in 1.00 l of 0.1 m sulfuric acid using a volumetric flask. an aliquot of this solution was then diluted 1 in 200 with 0.1 m sulfuric acid so that it was within the range of the standard solutions. the fluorescence intensity (fi) of this diluted sample was recorded at an excitation wavelength of 350 nm and an emission wavelength of 455 nm. 9. if the fluorescence intensity (fi) of the diluted sample is 290.1 and the calibration curve has an equation of y 558x where y is fl and x is the concentration of quinine bisulfate in units of mg/l, what is the weight of quinine bisulfate in the tablet? a) 104 mg b) 1.56 mg c) 0.104 mg d) 529 mg e) 312 mg

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The following information relates to question 9 below. an unknown quinine bisulfate sample was exami...

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