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HCl + KMnO4 + H2S = H2O + S + KCl + MnCl2

Input interpretation

hydrogen chloride + potassium permanganate + hydrogen sulfide ⟶ water + mixed sulfur + potassium chloride + manganese(II) chloride
hydrogen chloride + potassium permanganate + hydrogen sulfide ⟶ water + mixed sulfur + potassium chloride + manganese(II) chloride

Balanced equation

Balance the chemical equation algebraically:  + + ⟶ + + +  Add stoichiometric coefficients, c_i, to the reactants and products: c_1 + c_2 + c_3 ⟶ c_4 + c_5 + c_6 + c_7  Set the number of atoms in the reactants equal to the number of atoms in the products for Cl, H, K, Mn, O and S: Cl: | c_1 = c_6 + 2 c_7 H: | c_1 + 2 c_3 = 2 c_4 K: | c_2 = c_6 Mn: | c_2 = c_7 O: | 4 c_2 = c_4 S: | c_3 = c_5 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_2 = 1 and solve the system of equations for the remaining coefficients: c_1 = 3 c_2 = 1 c_3 = 5/2 c_4 = 4 c_5 = 5/2 c_6 = 1 c_7 = 1 Multiply by the least common denominator, 2, to eliminate fractional coefficients: c_1 = 6 c_2 = 2 c_3 = 5 c_4 = 8 c_5 = 5 c_6 = 2 c_7 = 2 Substitute the coefficients into the chemical reaction to obtain the balanced equation: Answer: |   | 6 + 2 + 5 ⟶ 8 + 5 + 2 + 2
Balance the chemical equation algebraically: + + ⟶ + + + Add stoichiometric coefficients, c_i, to the reactants and products: c_1 + c_2 + c_3 ⟶ c_4 + c_5 + c_6 + c_7 Set the number of atoms in the reactants equal to the number of atoms in the products for Cl, H, K, Mn, O and S: Cl: | c_1 = c_6 + 2 c_7 H: | c_1 + 2 c_3 = 2 c_4 K: | c_2 = c_6 Mn: | c_2 = c_7 O: | 4 c_2 = c_4 S: | c_3 = c_5 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_2 = 1 and solve the system of equations for the remaining coefficients: c_1 = 3 c_2 = 1 c_3 = 5/2 c_4 = 4 c_5 = 5/2 c_6 = 1 c_7 = 1 Multiply by the least common denominator, 2, to eliminate fractional coefficients: c_1 = 6 c_2 = 2 c_3 = 5 c_4 = 8 c_5 = 5 c_6 = 2 c_7 = 2 Substitute the coefficients into the chemical reaction to obtain the balanced equation: Answer: | | 6 + 2 + 5 ⟶ 8 + 5 + 2 + 2

Structures

 + + ⟶ + + +
+ + ⟶ + + +

Names

hydrogen chloride + potassium permanganate + hydrogen sulfide ⟶ water + mixed sulfur + potassium chloride + manganese(II) chloride
hydrogen chloride + potassium permanganate + hydrogen sulfide ⟶ water + mixed sulfur + potassium chloride + manganese(II) chloride

Equilibrium constant

K_c = ([H2O]^8 [S]^5 [KCl]^2 [MnCl2]^2)/([HCl]^6 [KMnO4]^2 [H2S]^5)
K_c = ([H2O]^8 [S]^5 [KCl]^2 [MnCl2]^2)/([HCl]^6 [KMnO4]^2 [H2S]^5)

Rate of reaction

rate = -1/6 (Δ[HCl])/(Δt) = -1/2 (Δ[KMnO4])/(Δt) = -1/5 (Δ[H2S])/(Δt) = 1/8 (Δ[H2O])/(Δt) = 1/5 (Δ[S])/(Δt) = 1/2 (Δ[KCl])/(Δt) = 1/2 (Δ[MnCl2])/(Δt) (assuming constant volume and no accumulation of intermediates or side products)
rate = -1/6 (Δ[HCl])/(Δt) = -1/2 (Δ[KMnO4])/(Δt) = -1/5 (Δ[H2S])/(Δt) = 1/8 (Δ[H2O])/(Δt) = 1/5 (Δ[S])/(Δt) = 1/2 (Δ[KCl])/(Δt) = 1/2 (Δ[MnCl2])/(Δt) (assuming constant volume and no accumulation of intermediates or side products)

Chemical names and formulas

 | hydrogen chloride | potassium permanganate | hydrogen sulfide | water | mixed sulfur | potassium chloride | manganese(II) chloride Hill formula | ClH | KMnO_4 | H_2S | H_2O | S | ClK | Cl_2Mn name | hydrogen chloride | potassium permanganate | hydrogen sulfide | water | mixed sulfur | potassium chloride | manganese(II) chloride IUPAC name | hydrogen chloride | potassium permanganate | hydrogen sulfide | water | sulfur | potassium chloride | dichloromanganese
| hydrogen chloride | potassium permanganate | hydrogen sulfide | water | mixed sulfur | potassium chloride | manganese(II) chloride Hill formula | ClH | KMnO_4 | H_2S | H_2O | S | ClK | Cl_2Mn name | hydrogen chloride | potassium permanganate | hydrogen sulfide | water | mixed sulfur | potassium chloride | manganese(II) chloride IUPAC name | hydrogen chloride | potassium permanganate | hydrogen sulfide | water | sulfur | potassium chloride | dichloromanganese