五、試平衡下列之反應式:(20 分) IO3- + I- + H+ = I2 + H2O BrO3- + I- + H+ = I2 + H2O + Br- Cr2O72- + I- + H+ = Cr3+ + I2 + H2O I2 + Na2S2O3 = Na2S4O6 + NaI
詳解 (共 1 筆)
詳解
IO3^- +5I^- +6H^+ =6I2+3H2O
BrO3^- + 6I^- +6H^+ =3I2+3H2O+Br^-
CrO7^2- +6I^- +14H^+ =2Cr^3+ +3I2+7H2O
I2+2S23^2- = S4O6^2- +2I^-