II. Pre-lab Questions1 Calculate the mass of quinine sulphate monohydrate (QSM) that is required to prepare250 mL of 100 ppm quinine stock solution. M.W. of quinine = 324.47g/mol; F.W. ofQSM=764.95 g/mol. Have you taken the dimer structure of QSM into consideration?III.(a)ProcedureQuinine solutions1 Using 0.05 M H2SO4 as solvent, prepare 250 mL of 100 ppm quinine stock solution.2 By serial dilution of the stock with 0.05 M H2SO4, prepare 100 mL each of five standardquinine solutions: 0.01, 0.05,

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