27. Solving a chemistry problem

3. Give an opinion on the quality of analgin by quantitative determination, taking into account the requirements of the ND (analgin must be at least 99.0% in terms of dry matter), if 11.31 ml of 0.1 M iodine solution were used to titrate a 0.1984 g sample of the drug ( K= 1.0036). The weight loss during drying was 5.2%. (M. (analgin monohydrate) = 351.36 g/mol).