www.tuhoc.edu.vn Ancol Ancol Ancol O2 to O2 to H2SO4 (®Æc) = H2 anken + H2O 170 180 oC Anken + H2O < H2 ancol Ancol + Cu(OH)2 R(OH)a + aNa R(ONa)a + a H2 VD1: CO2 1,08 gam H2 nCO2 0,1 0, 05 nNaOH cßn l¹i 2 nancol Na2CO3 + H2O nNaOH ban ®Çu nNaOH (ph ¶n øng) nH 2NaOH + CO2 nNaOH (ph¶n øng) a=2 0, 05 (mol) 0,1 (mol) nH2O 0, 06 (mol) htttp://tuhoc.edu.vn/blog nH2n+2O www.tuhoc.edu.vn H2 – – VD2: H2 nCO nH2O nCO nH O nH2n+2Oa nH2n+2Oa nCO2 nH O nO nCO VO + 3n a O2 n n VCO n 3n a n to nCO2 + (n+1)H2O 3H8O 1,5 a 1 5,6 lít CO2 A) B) C) D) 2 A) C2H4(OH)2 C) C3H5(OH)3 B) C3H7OH D) C3H6(OH)2 htttp://tuhoc.edu.vn/blog www.tuhoc.edu.vn 17,92 lít O2 gam Cu(OH)2 A) 9,8 propan–1,2 C) 4,9 propan–1,3 B) D) 4,9 glixerol H2 A) C2H6O2 C) C3H8O2 B) C2H6O D) C4H10O2 H2 TOPPER Chú ý O2 CO2 3:2 A) m 2a C) m a V 22, V 5, B) m 2a D) m a V 11, V 5, 2O A) 5,42 B) 5,72 C) 4,72 Giá D) 7,42 lít khí O2 V2 a A) V1 = 2V2 + 11,2a C) V1 = V2 + 22,4a lít CO2 a mol H2O Các giá 1, B) V1 = V2 – 22,4a D) V1 = 2V2 – 11,2a htttp://tuhoc.edu.vn/blog www.tuhoc.edu.vn 11,7 gam H2 A) CH3OH C2H5OH C) C2H4(OH)2 C3H6(OH)2 B) C2H5OH C3H7OH D) CH3OH C2H4(OH)2 A A) C2H4(OH)2 C3H6(OH)2 C) C3H5(OH)3 C4H7(OH)3 B) C3H6(OH)2 C3H5(OH)3 D) C3H6(OH)2 C4H8(OH)2 B A) C3H5(OH)3 C4H7(OH)3 C) C2H4(OH)2 C4H8(OH)2 H2O có B) C2H5OH C4H9OH D) C2H4(OH)2 C3H6(OH)2 C 2, A) 14,56 12,6 gam H2 B) 15,68 C) 11,20 D) 4,48 D mol H2 A) C2H6O2, C3H8O2 C) C3H6O, C4H8O 0,425 mol H2 B) C2H6O, CH4O D) C2H6O, C3H8O E 2 A) 3,36 B) 11,20 C) 5,60 F 13,44 lít khí CO2 D) 6,72 2 htttp://tuhoc.edu.vn/blog A) 12,9 B) 15,3 C) 12,3 D) 16,9 www.tuhoc.edu.vn H2SO (®Æc) 130 140 oC mROH nR O R2O + H2O mR2O mH2O n ROH nH O VD3: 2O 2SO4 nCO2 nH2O nO nO2 mancol (mCO nCO2 nancol 0, (mol) mH O ) mO nH2O nCO2 2 n ancol 0,125 (mol) mete mancol mH O mH2O 19, (gam) 10,1 (gam) 0, 25 (mol) 2ROH nH O mO2 H2SO4 (®Æc) 130 140 oC R 2O H2O 2, 25 (gam) 7, 85 (gam) htttp://tuhoc.edu.vn/blog www.tuhoc.edu.vn G dãy H2 (đktc) 9,90 gam 2SO4 l A) 6,45 gam C) 4,20 gam B) 5,46 gam D) 7,40 gam H • H2O • (đktc) 6,3 gam 140o 2SO4 A) 25% 35% C) 40% 20% B) 20% 40% D) 30% 30% htttp://tuhoc.edu.vn/blog www.tuhoc.edu.vn Câu B Câu A A C B C B C A A D D E A D F B C G A D H C A htttp://tuhoc.edu.vn/blog