Input interpretation
HCl hydrogen chloride + KI potassium iodide + Ca(IO_3)_2 calcium iodate ⟶ H_2O water + I_2 iodine + KCl potassium chloride + CaCl_2 calcium chloride
Balanced equation
Balance the chemical equation algebraically: HCl + KI + Ca(IO_3)_2 ⟶ H_2O + I_2 + KCl + CaCl_2 Add stoichiometric coefficients, c_i, to the reactants and products: c_1 HCl + c_2 KI + c_3 Ca(IO_3)_2 ⟶ c_4 H_2O + c_5 I_2 + c_6 KCl + c_7 CaCl_2 Set the number of atoms in the reactants equal to the number of atoms in the products for Cl, H, I, K, Ca and O: Cl: | c_1 = c_6 + 2 c_7 H: | c_1 = 2 c_4 I: | c_2 + 2 c_3 = 2 c_5 K: | c_2 = c_6 Ca: | c_3 = c_7 O: | 6 c_3 = c_4 Since the coefficients are relative quantities and underdetermined, choose a coefficient to set arbitrarily. To keep the coefficients small, the arbitrary value is ordinarily one. For instance, set c_3 = 1 and solve the system of equations for the remaining coefficients: c_1 = 12 c_2 = 10 c_3 = 1 c_4 = 6 c_5 = 6 c_6 = 10 c_7 = 1 Substitute the coefficients into the chemical reaction to obtain the balanced equation: Answer: | | 12 HCl + 10 KI + Ca(IO_3)_2 ⟶ 6 H_2O + 6 I_2 + 10 KCl + CaCl_2
Structures
+ + ⟶ + + +
Names
hydrogen chloride + potassium iodide + calcium iodate ⟶ water + iodine + potassium chloride + calcium chloride
Equilibrium constant
![K_c = ([H2O]^6 [I2]^6 [KCl]^10 [CaCl2])/([HCl]^12 [KI]^10 [Ca(IO3)2])](../image_source/8f434f8431f5ff536aa87eadd2408c55.png)
K_c = ([H2O]^6 [I2]^6 [KCl]^10 [CaCl2])/([HCl]^12 [KI]^10 [Ca(IO3)2])
Rate of reaction
![rate = -1/12 (Δ[HCl])/(Δt) = -1/10 (Δ[KI])/(Δt) = -(Δ[Ca(IO3)2])/(Δt) = 1/6 (Δ[H2O])/(Δt) = 1/6 (Δ[I2])/(Δt) = 1/10 (Δ[KCl])/(Δt) = (Δ[CaCl2])/(Δt) (assuming constant volume and no accumulation of intermediates or side products)](../image_source/62e1f43a1da979697f1010d48cf40a82.png)
rate = -1/12 (Δ[HCl])/(Δt) = -1/10 (Δ[KI])/(Δt) = -(Δ[Ca(IO3)2])/(Δt) = 1/6 (Δ[H2O])/(Δt) = 1/6 (Δ[I2])/(Δt) = 1/10 (Δ[KCl])/(Δt) = (Δ[CaCl2])/(Δt) (assuming constant volume and no accumulation of intermediates or side products)
Chemical names and formulas
| hydrogen chloride | potassium iodide | calcium iodate | water | iodine | potassium chloride | calcium chloride formula | HCl | KI | Ca(IO_3)_2 | H_2O | I_2 | KCl | CaCl_2 Hill formula | ClH | IK | CaI_2O_6 | H_2O | I_2 | ClK | CaCl_2 name | hydrogen chloride | potassium iodide | calcium iodate | water | iodine | potassium chloride | calcium chloride IUPAC name | hydrogen chloride | potassium iodide | | water | molecular iodine | potassium chloride | calcium dichloride