Cau3: 1. +m1>m vi dd axitsunfuric dac rat hao nuoc,hut am manh.Luong nuoc tu khong khi di vao lam dd loang ra va khoi luong tang len. +m2m vi dd natri hidroxit dac khong nhung hut am ma con hap phu CO2 co trong kk lam khoi luong dd tang len. CO2+2NaOH-->Na2CO3+H2O 2.Cac phan ung xay ra: O3+2KI+H2O-->O2+I2+2KOH CO2+NaClO+H2O-->NaHCO3+HClO Cl2+2KI-->2KCl+I2 Neu KI con du:KI+I2-->KI3 2FeI2+3Cl2-->2FeCl3+2I2 5Cl2+I2+6H2O-->2HIO3+10HCl 3.ta co: nKOH=0,08(mol) SO2+KOH-->KHSO3 x---x------x SO2+2KOH-->K2SO3+H2O y----2y----y =>x+2y=0,08(1) 120x+158y=7,96(2) =>x=0,04;y=0,02 =>V=0,06.22,4=1,344(lit)

(1):2CH3CHO+O2-->2CH3COOH (2):CH3COOH+C2H5-->CH3COOC2H5+H2O (3):CH3COOC2H5+NaOH-->CH3COONa+C2H5OH (4):CH3COOH+NaOH-->CH3COONa+H2O (5):2CH3COONa+H2SO4-->CH3COOH+Na2SO4 (6):CH3COONa+NaOH-->CH4+Na2CO3 (7):2CH4-->C2H2+3H2 (8):C2H2+2H2-->C2H6 (9):C2H6+Cl2-->C2H5Cl+HCl (10):C2H5Cl+NaOH-->C2H5OH+NaCl (11):C2H5OH+CuO-->CH3CHO+Cu+H2O (12):CH3CHO+H2-->C2H5OH (13):C2H2+H2-->C2H5OH+NaCl (14):C2H4+H2-->C2H6 (15):C2H4+H2O-->C2H5OH (16):C2H5OH+HCl-->C2H5Cl+H2O