... mmui + mru mmui meste = 0,2ì40 64 = 1,6 gam 1,6 ì100 = 11, 8 gam m mmui meste = meste meste = 13,56 Meste = 118 vC R + (44 + 15)ì2 = 118 R = Vy cụng thc cu to ca este l CH3OCOCOOCH3 (ỏp ỏn ... CaCl + 3O (2) CaCl + 2O (3) CaCl KCl ( A ) 123 h2 B m KCl ( B ) = m B m CaCl2 ( B) = 58,72 0,18 111 = 38,74 gam m KCl ( D ) = m KCl ( B) + m KCl ( pt 4) = 38,74 + 0,36 ì 74,5 = 65,56 gam 3 m KCl ... 2: un 132,8 gam hn hp ru no, n chc vi H2SO4 c 140oC thu c hn hp cỏc ete cú s mol bng v cú lng l 111 ,2 gam S mol ca mi ete hn hp l bao nhiờu? A 0,1 mol B 0,15 mol C 0,4 mol D 0,2 mol Gii : Ta...