Answer to Question #190924 in General Chemistry for mayau

Question

The analysis of drug methylamide (formula weight = 195 g/mol) was performed using a UV-Vis spectrometer. The methylamide has a molar absorptivity of 828 L mol-1 cm-1 at 501 nm. One tablet is dissolved in 2.5 L of water. If the solution exhibits an absorbance of 0.773 at 501 nm in a 1.0 cm cell, how many grams of methylamide are contained in the tablet?

Answer 1

455.1 mg or 0.455 g of methylamide are contained in the tablet.