Input interpretation
![H_2SO_4 sulfuric acid + KMnO_4 potassium permanganate + FeSO_4·7H_2O ironate ⟶ H_2O water + K_2SO_4 potassium sulfate + MnSO_4 manganese(II) sulfate + Fe_2(SO_4)_3·xH_2O iron(III) sulfate hydrate](../image_source/dd39810052f9dd80cdd058e7ea9d624a.png)
H_2SO_4 sulfuric acid + KMnO_4 potassium permanganate + FeSO_4·7H_2O ironate ⟶ H_2O water + K_2SO_4 potassium sulfate + MnSO_4 manganese(II) sulfate + Fe_2(SO_4)_3·xH_2O iron(III) sulfate hydrate
Balanced equation
![Balance the chemical equation algebraically: H_2SO_4 + KMnO_4 + FeSO_4·7H_2O ⟶ H_2O + K_2SO_4 + MnSO_4 + Fe_2(SO_4)_3·xH_2O Add stoichiometric coefficients, c_i, to the reactants and products: c_1 H_2SO_4 + c_2 KMnO_4 + c_3 FeSO_4·7H_2O ⟶ c_4 H_2O + c_5 K_2SO_4 + c_6 MnSO_4 + c_7 Fe_2(SO_4)_3·xH_2O Set the number of atoms in the reactants equal to the number of atoms in the products for H, O, S, K, Mn and Fe: H: | 2 c_1 + 14 c_3 = 2 c_4 O: | 4 c_1 + 4 c_2 + 11 c_3 = c_4 + 4 c_5 + 4 c_6 + 12 c_7 S: | c_1 + c_3 = c_5 + c_6 + 3 c_7 K: | c_2 = 2 c_5 Mn: | c_2 = c_6 Fe: | c_3 = 2 c_7 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_5 = 1 and solve the system of equations for the remaining coefficients: c_1 = 8 c_2 = 2 c_3 = 10 c_4 = 78 c_5 = 1 c_6 = 2 c_7 = 5 Substitute the coefficients into the chemical reaction to obtain the balanced equation: Answer: | | 8 H_2SO_4 + 2 KMnO_4 + 10 FeSO_4·7H_2O ⟶ 78 H_2O + K_2SO_4 + 2 MnSO_4 + 5 Fe_2(SO_4)_3·xH_2O](../image_source/bdeb818873287327c50d9af39cb50ec7.png)
Balance the chemical equation algebraically: H_2SO_4 + KMnO_4 + FeSO_4·7H_2O ⟶ H_2O + K_2SO_4 + MnSO_4 + Fe_2(SO_4)_3·xH_2O Add stoichiometric coefficients, c_i, to the reactants and products: c_1 H_2SO_4 + c_2 KMnO_4 + c_3 FeSO_4·7H_2O ⟶ c_4 H_2O + c_5 K_2SO_4 + c_6 MnSO_4 + c_7 Fe_2(SO_4)_3·xH_2O Set the number of atoms in the reactants equal to the number of atoms in the products for H, O, S, K, Mn and Fe: H: | 2 c_1 + 14 c_3 = 2 c_4 O: | 4 c_1 + 4 c_2 + 11 c_3 = c_4 + 4 c_5 + 4 c_6 + 12 c_7 S: | c_1 + c_3 = c_5 + c_6 + 3 c_7 K: | c_2 = 2 c_5 Mn: | c_2 = c_6 Fe: | c_3 = 2 c_7 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_5 = 1 and solve the system of equations for the remaining coefficients: c_1 = 8 c_2 = 2 c_3 = 10 c_4 = 78 c_5 = 1 c_6 = 2 c_7 = 5 Substitute the coefficients into the chemical reaction to obtain the balanced equation: Answer: | | 8 H_2SO_4 + 2 KMnO_4 + 10 FeSO_4·7H_2O ⟶ 78 H_2O + K_2SO_4 + 2 MnSO_4 + 5 Fe_2(SO_4)_3·xH_2O
Structures
![+ + ⟶ + + +](../image_source/da43fd1f40e7dea6ee88cf91997f9a86.png)
+ + ⟶ + + +
Names
![sulfuric acid + potassium permanganate + ironate ⟶ water + potassium sulfate + manganese(II) sulfate + iron(III) sulfate hydrate](../image_source/62fc1d32eaacec1515a43417a1a53240.png)
sulfuric acid + potassium permanganate + ironate ⟶ water + potassium sulfate + manganese(II) sulfate + iron(III) sulfate hydrate
Equilibrium constant
![Construct the equilibrium constant, K, expression for: H_2SO_4 + KMnO_4 + FeSO_4·7H_2O ⟶ H_2O + K_2SO_4 + MnSO_4 + Fe_2(SO_4)_3·xH_2O Plan: • Balance the chemical equation. • Determine the stoichiometric numbers. • Assemble the activity expression for each chemical species. • Use the activity expressions to build the equilibrium constant expression. Write the balanced chemical equation: 8 H_2SO_4 + 2 KMnO_4 + 10 FeSO_4·7H_2O ⟶ 78 H_2O + K_2SO_4 + 2 MnSO_4 + 5 Fe_2(SO_4)_3·xH_2O Assign stoichiometric numbers, ν_i, using the stoichiometric coefficients, c_i, from the balanced chemical equation in the following manner: ν_i = -c_i for reactants and ν_i = c_i for products: chemical species | c_i | ν_i H_2SO_4 | 8 | -8 KMnO_4 | 2 | -2 FeSO_4·7H_2O | 10 | -10 H_2O | 78 | 78 K_2SO_4 | 1 | 1 MnSO_4 | 2 | 2 Fe_2(SO_4)_3·xH_2O | 5 | 5 Assemble the activity expressions accounting for the state of matter and ν_i: chemical species | c_i | ν_i | activity expression H_2SO_4 | 8 | -8 | ([H2SO4])^(-8) KMnO_4 | 2 | -2 | ([KMnO4])^(-2) FeSO_4·7H_2O | 10 | -10 | ([FeSO4·7H2O])^(-10) H_2O | 78 | 78 | ([H2O])^78 K_2SO_4 | 1 | 1 | [K2SO4] MnSO_4 | 2 | 2 | ([MnSO4])^2 Fe_2(SO_4)_3·xH_2O | 5 | 5 | ([Fe2(SO4)3·xH2O])^5 The equilibrium constant symbol in the concentration basis is: K_c Mulitply the activity expressions to arrive at the K_c expression: Answer: | | K_c = ([H2SO4])^(-8) ([KMnO4])^(-2) ([FeSO4·7H2O])^(-10) ([H2O])^78 [K2SO4] ([MnSO4])^2 ([Fe2(SO4)3·xH2O])^5 = (([H2O])^78 [K2SO4] ([MnSO4])^2 ([Fe2(SO4)3·xH2O])^5)/(([H2SO4])^8 ([KMnO4])^2 ([FeSO4·7H2O])^10)](../image_source/52510a889398475fdeca7e2218db7b10.png)
Construct the equilibrium constant, K, expression for: H_2SO_4 + KMnO_4 + FeSO_4·7H_2O ⟶ H_2O + K_2SO_4 + MnSO_4 + Fe_2(SO_4)_3·xH_2O Plan: • Balance the chemical equation. • Determine the stoichiometric numbers. • Assemble the activity expression for each chemical species. • Use the activity expressions to build the equilibrium constant expression. Write the balanced chemical equation: 8 H_2SO_4 + 2 KMnO_4 + 10 FeSO_4·7H_2O ⟶ 78 H_2O + K_2SO_4 + 2 MnSO_4 + 5 Fe_2(SO_4)_3·xH_2O Assign stoichiometric numbers, ν_i, using the stoichiometric coefficients, c_i, from the balanced chemical equation in the following manner: ν_i = -c_i for reactants and ν_i = c_i for products: chemical species | c_i | ν_i H_2SO_4 | 8 | -8 KMnO_4 | 2 | -2 FeSO_4·7H_2O | 10 | -10 H_2O | 78 | 78 K_2SO_4 | 1 | 1 MnSO_4 | 2 | 2 Fe_2(SO_4)_3·xH_2O | 5 | 5 Assemble the activity expressions accounting for the state of matter and ν_i: chemical species | c_i | ν_i | activity expression H_2SO_4 | 8 | -8 | ([H2SO4])^(-8) KMnO_4 | 2 | -2 | ([KMnO4])^(-2) FeSO_4·7H_2O | 10 | -10 | ([FeSO4·7H2O])^(-10) H_2O | 78 | 78 | ([H2O])^78 K_2SO_4 | 1 | 1 | [K2SO4] MnSO_4 | 2 | 2 | ([MnSO4])^2 Fe_2(SO_4)_3·xH_2O | 5 | 5 | ([Fe2(SO4)3·xH2O])^5 The equilibrium constant symbol in the concentration basis is: K_c Mulitply the activity expressions to arrive at the K_c expression: Answer: | | K_c = ([H2SO4])^(-8) ([KMnO4])^(-2) ([FeSO4·7H2O])^(-10) ([H2O])^78 [K2SO4] ([MnSO4])^2 ([Fe2(SO4)3·xH2O])^5 = (([H2O])^78 [K2SO4] ([MnSO4])^2 ([Fe2(SO4)3·xH2O])^5)/(([H2SO4])^8 ([KMnO4])^2 ([FeSO4·7H2O])^10)
Rate of reaction
![Construct the rate of reaction expression for: H_2SO_4 + KMnO_4 + FeSO_4·7H_2O ⟶ H_2O + K_2SO_4 + MnSO_4 + Fe_2(SO_4)_3·xH_2O Plan: • Balance the chemical equation. • Determine the stoichiometric numbers. • Assemble the rate term for each chemical species. • Write the rate of reaction expression. Write the balanced chemical equation: 8 H_2SO_4 + 2 KMnO_4 + 10 FeSO_4·7H_2O ⟶ 78 H_2O + K_2SO_4 + 2 MnSO_4 + 5 Fe_2(SO_4)_3·xH_2O Assign stoichiometric numbers, ν_i, using the stoichiometric coefficients, c_i, from the balanced chemical equation in the following manner: ν_i = -c_i for reactants and ν_i = c_i for products: chemical species | c_i | ν_i H_2SO_4 | 8 | -8 KMnO_4 | 2 | -2 FeSO_4·7H_2O | 10 | -10 H_2O | 78 | 78 K_2SO_4 | 1 | 1 MnSO_4 | 2 | 2 Fe_2(SO_4)_3·xH_2O | 5 | 5 The rate term for each chemical species, B_i, is 1/ν_i(Δ[B_i])/(Δt) where [B_i] is the amount concentration and t is time: chemical species | c_i | ν_i | rate term H_2SO_4 | 8 | -8 | -1/8 (Δ[H2SO4])/(Δt) KMnO_4 | 2 | -2 | -1/2 (Δ[KMnO4])/(Δt) FeSO_4·7H_2O | 10 | -10 | -1/10 (Δ[FeSO4·7H2O])/(Δt) H_2O | 78 | 78 | 1/78 (Δ[H2O])/(Δt) K_2SO_4 | 1 | 1 | (Δ[K2SO4])/(Δt) MnSO_4 | 2 | 2 | 1/2 (Δ[MnSO4])/(Δt) Fe_2(SO_4)_3·xH_2O | 5 | 5 | 1/5 (Δ[Fe2(SO4)3·xH2O])/(Δt) (for infinitesimal rate of change, replace Δ with d) Set the rate terms equal to each other to arrive at the rate expression: Answer: | | rate = -1/8 (Δ[H2SO4])/(Δt) = -1/2 (Δ[KMnO4])/(Δt) = -1/10 (Δ[FeSO4·7H2O])/(Δt) = 1/78 (Δ[H2O])/(Δt) = (Δ[K2SO4])/(Δt) = 1/2 (Δ[MnSO4])/(Δt) = 1/5 (Δ[Fe2(SO4)3·xH2O])/(Δt) (assuming constant volume and no accumulation of intermediates or side products)](../image_source/a1a9dc51f0a4fc580d874082fb453128.png)
Construct the rate of reaction expression for: H_2SO_4 + KMnO_4 + FeSO_4·7H_2O ⟶ H_2O + K_2SO_4 + MnSO_4 + Fe_2(SO_4)_3·xH_2O Plan: • Balance the chemical equation. • Determine the stoichiometric numbers. • Assemble the rate term for each chemical species. • Write the rate of reaction expression. Write the balanced chemical equation: 8 H_2SO_4 + 2 KMnO_4 + 10 FeSO_4·7H_2O ⟶ 78 H_2O + K_2SO_4 + 2 MnSO_4 + 5 Fe_2(SO_4)_3·xH_2O Assign stoichiometric numbers, ν_i, using the stoichiometric coefficients, c_i, from the balanced chemical equation in the following manner: ν_i = -c_i for reactants and ν_i = c_i for products: chemical species | c_i | ν_i H_2SO_4 | 8 | -8 KMnO_4 | 2 | -2 FeSO_4·7H_2O | 10 | -10 H_2O | 78 | 78 K_2SO_4 | 1 | 1 MnSO_4 | 2 | 2 Fe_2(SO_4)_3·xH_2O | 5 | 5 The rate term for each chemical species, B_i, is 1/ν_i(Δ[B_i])/(Δt) where [B_i] is the amount concentration and t is time: chemical species | c_i | ν_i | rate term H_2SO_4 | 8 | -8 | -1/8 (Δ[H2SO4])/(Δt) KMnO_4 | 2 | -2 | -1/2 (Δ[KMnO4])/(Δt) FeSO_4·7H_2O | 10 | -10 | -1/10 (Δ[FeSO4·7H2O])/(Δt) H_2O | 78 | 78 | 1/78 (Δ[H2O])/(Δt) K_2SO_4 | 1 | 1 | (Δ[K2SO4])/(Δt) MnSO_4 | 2 | 2 | 1/2 (Δ[MnSO4])/(Δt) Fe_2(SO_4)_3·xH_2O | 5 | 5 | 1/5 (Δ[Fe2(SO4)3·xH2O])/(Δt) (for infinitesimal rate of change, replace Δ with d) Set the rate terms equal to each other to arrive at the rate expression: Answer: | | rate = -1/8 (Δ[H2SO4])/(Δt) = -1/2 (Δ[KMnO4])/(Δt) = -1/10 (Δ[FeSO4·7H2O])/(Δt) = 1/78 (Δ[H2O])/(Δt) = (Δ[K2SO4])/(Δt) = 1/2 (Δ[MnSO4])/(Δt) = 1/5 (Δ[Fe2(SO4)3·xH2O])/(Δt) (assuming constant volume and no accumulation of intermediates or side products)
Chemical names and formulas
![| sulfuric acid | potassium permanganate | ironate | water | potassium sulfate | manganese(II) sulfate | iron(III) sulfate hydrate formula | H_2SO_4 | KMnO_4 | FeSO_4·7H_2O | H_2O | K_2SO_4 | MnSO_4 | Fe_2(SO_4)_3·xH_2O Hill formula | H_2O_4S | KMnO_4 | FeH_14O_11S | H_2O | K_2O_4S | MnSO_4 | Fe_2O_12S_3 name | sulfuric acid | potassium permanganate | ironate | water | potassium sulfate | manganese(II) sulfate | iron(III) sulfate hydrate IUPAC name | sulfuric acid | potassium permanganate | iron(+2) cation sulfate heptahydrate | water | dipotassium sulfate | manganese(+2) cation sulfate | diferric trisulfate](../image_source/396cc67c44071c74f96bca27a56fed85.png)
| sulfuric acid | potassium permanganate | ironate | water | potassium sulfate | manganese(II) sulfate | iron(III) sulfate hydrate formula | H_2SO_4 | KMnO_4 | FeSO_4·7H_2O | H_2O | K_2SO_4 | MnSO_4 | Fe_2(SO_4)_3·xH_2O Hill formula | H_2O_4S | KMnO_4 | FeH_14O_11S | H_2O | K_2O_4S | MnSO_4 | Fe_2O_12S_3 name | sulfuric acid | potassium permanganate | ironate | water | potassium sulfate | manganese(II) sulfate | iron(III) sulfate hydrate IUPAC name | sulfuric acid | potassium permanganate | iron(+2) cation sulfate heptahydrate | water | dipotassium sulfate | manganese(+2) cation sulfate | diferric trisulfate