You were asked to calibrate a new suppository mould which contains 15 cavities. You used 30 g of plain (blank) cocoa butter to fill all the cavities. Using double-cast method you made another 15 suppositories of 50mg hydrocortisone in cocoa butter. The total weight of these suppositories was 30.2g 1) What is the DDF of hydrocortisone in cocoa butter? 2) If you want to change cocoa butter to PEG base with density ratio of 1.2. How much PEG and how much hydrocortisone will you need to make 15 suppositories with the same dose? 3) What is "new" the DDF of hydrocortisone in the PEG base