please solve question 2.20

3-19. Derive C,H,O,N.S. + y + 4x - 3a - 2 - 2 02 -CO2 y + 4x - 3-2:- 2b NH" + HCO, y + 4x - 3a - 23 - 2by y + 4x - 30-22-25 b y-5-21 HS+ y + 4x - 30-23-25 2(y + 4x - 3a - 22-25) H20 2-20. An organic waste has the following composition H - 6.0%, C = 45.0%, N - 2.0%, O = 33,0% - 0.5%, ash= 13.5%, and moisture = 4.8%. Using the reaction derived in Problem 2-19. how much O, is needed to decompose this waste