... CH(OH) R Mn +7 + 3e Mn +4 58 BTE dd n = m = = 33 3 ,33 KMnO KMnO 0 ,31 6 C2 H : a(mol) BTNT.Mn n MnO2 = mMnO = 58(gam) = 1(mol) C3 H : b(mol) a + b = 62a 6,906 = 33 3 ,33 + 28a + 42b ... (SO4 )3 = Al 34 2 0, 705.98 n SO2 = 0, 705 m dd = 2 43, 275 H 2SO = 0, 284 Khi lng dung dch sau phn ng : m dd sau pu = 80 ,37 = 2 73, 9 73( gam) 0, 2 933 5 BTKL m + 2 43, 275 = 2 73, 9 73 + 0,18.2 m = 31 , ... CH3 O CH3 D ỳng, vỡ cú cỏc nhúm OH k Cõu 34 : Chn ỏp ỏn B Cõu 35 : Chn ỏp ỏn D Cõu 36 : Chn ỏp ỏn D 1000 thi mụn Húa cú li gii chi tit ti website http://dethithpt.com 80 ,37 BTNT.Al m = 0, 235 ...