... 0, 85( mol) Nờn n C O BTKL Trong X = 38 ,5 1, 7.12 0, 85. 16 = 4 ,5( mol) V 38 ,5 = m(C, H, O) n H BTNT.H Sinh V n H2O = 2, 25( mol) m Bình tăng = m CO2 + m H 2O = 1, 7.44 + 2, 25. 18 = 1 15, 3(gam) ... 1,1 = 2, 0 ,5 0 ,5. 8, = 2, 15( mol) 2, 15 + 1,1.2 = 2,1 75( mol) Phong = 48, 72(lit) Cõu 17 : Chn ỏp ỏn A Bi toỏn khỏ n gin axit ó cho d nờn mui l Fe3+ Fe : 0, 15( mol) 30 BTNT.Fe = 0, 0 75 Phong ... 0, 15. 3 = 2a + 0, 0 25. 2 a = 0, 2(mol) BTKL V Phong = 0, 15. 56 + 0, 2.16 = 11, 6(gam) Cõu 18: Chn ỏp ỏn A Cõu 19: Chn ỏp ỏn B Cõu 20: Chn ỏp ỏn A Cõu 21: Chn ỏp ỏn A 33, 75 n Gly = 75 = 0, 45( mol)...