Ngày tải lên :
27/11/2013, 16:11
... 0,5 0 ,25 0 ,25 0 ,25 0 ,25 0 ,25 1 ,27 = 0, 02 = 63,5n (g) n 0 ,25 0 ,25 0 .25 0 .25 Fe(OH )2 + H2O + O2 → Fe(OH)3 (A6) (A8) (A9) (A10) Fe(OH)3 → Fe2O3 + H2O (A10) (A11) (A8) Fe2O3 + H2 → Fe + H2O (A11) ... % 10 = Ba + 2H2O → Ba(OH )2 + H2 (1) → Cu(OH )2 ↓+ BaSO4 ↓ Ba(OH )2 + CuSO4 (2) → BaSO4 ↓+ 2NH3 + 2H2O Ba(OH )2 + (NH4)2SO4 Cu(OH )2 t → CuO + H2O (4) 0 ,25 0 ,25 (3) 0, 125 0, 125 0, 125 BaSO4 Theo ... -TH1:Nếu:Ca(OH )2 dư ta có pt: CO2 + Ca(OH )2 → CaCO3 + H2O Theo ra: nCaCO3 = : 100 =0,01 mol Theo pt: nCO2 = nCaCO3 = 0,01mol 0 .25 0 .25 to 0 .25 to 0, 01 .22 , 100% = 2, 24 % 10 ⇒ %VCO2 = Câu (2. đ) 0 ,25 0 ,25 0 ,25 ...