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H2SO4 + Fe = H2O + H2S + FeSO4

Input interpretation

H_2SO_4 sulfuric acid + Fe iron ⟶ H_2O water + H_2S hydrogen sulfide + FeSO_4 duretter
H_2SO_4 sulfuric acid + Fe iron ⟶ H_2O water + H_2S hydrogen sulfide + FeSO_4 duretter

Balanced equation

Balance the chemical equation algebraically: H_2SO_4 + Fe ⟶ H_2O + H_2S + FeSO_4 Add stoichiometric coefficients, c_i, to the reactants and products: c_1 H_2SO_4 + c_2 Fe ⟶ c_3 H_2O + c_4 H_2S + c_5 FeSO_4 Set the number of atoms in the reactants equal to the number of atoms in the products for H, O, S and Fe: H: | 2 c_1 = 2 c_3 + 2 c_4 O: | 4 c_1 = c_3 + 4 c_5 S: | c_1 = c_4 + c_5 Fe: | c_2 = 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_4 = 1 and solve the system of equations for the remaining coefficients: c_1 = 5 c_2 = 4 c_3 = 4 c_4 = 1 c_5 = 4 Substitute the coefficients into the chemical reaction to obtain the balanced equation: Answer: | | 5 H_2SO_4 + 4 Fe ⟶ 4 H_2O + H_2S + 4 FeSO_4
Balance the chemical equation algebraically: H_2SO_4 + Fe ⟶ H_2O + H_2S + FeSO_4 Add stoichiometric coefficients, c_i, to the reactants and products: c_1 H_2SO_4 + c_2 Fe ⟶ c_3 H_2O + c_4 H_2S + c_5 FeSO_4 Set the number of atoms in the reactants equal to the number of atoms in the products for H, O, S and Fe: H: | 2 c_1 = 2 c_3 + 2 c_4 O: | 4 c_1 = c_3 + 4 c_5 S: | c_1 = c_4 + c_5 Fe: | c_2 = 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_4 = 1 and solve the system of equations for the remaining coefficients: c_1 = 5 c_2 = 4 c_3 = 4 c_4 = 1 c_5 = 4 Substitute the coefficients into the chemical reaction to obtain the balanced equation: Answer: | | 5 H_2SO_4 + 4 Fe ⟶ 4 H_2O + H_2S + 4 FeSO_4

Structures

+ ⟶ + +
+ ⟶ + +

Names

sulfuric acid + iron ⟶ water + hydrogen sulfide + duretter
sulfuric acid + iron ⟶ water + hydrogen sulfide + duretter

Equilibrium constant

Construct the equilibrium constant, K, expression for: H_2SO_4 + Fe ⟶ H_2O + H_2S + FeSO_4 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: 5 H_2SO_4 + 4 Fe ⟶ 4 H_2O + H_2S + 4 FeSO_4 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 | 5 | -5 Fe | 4 | -4 H_2O | 4 | 4 H_2S | 1 | 1 FeSO_4 | 4 | 4 Assemble the activity expressions accounting for the state of matter and ν_i: chemical species | c_i | ν_i | activity expression H_2SO_4 | 5 | -5 | ([H2SO4])^(-5) Fe | 4 | -4 | ([Fe])^(-4) H_2O | 4 | 4 | ([H2O])^4 H_2S | 1 | 1 | [H2S] FeSO_4 | 4 | 4 | ([FeSO4])^4 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])^(-5) ([Fe])^(-4) ([H2O])^4 [H2S] ([FeSO4])^4 = (([H2O])^4 [H2S] ([FeSO4])^4)/(([H2SO4])^5 ([Fe])^4)
Construct the equilibrium constant, K, expression for: H_2SO_4 + Fe ⟶ H_2O + H_2S + FeSO_4 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: 5 H_2SO_4 + 4 Fe ⟶ 4 H_2O + H_2S + 4 FeSO_4 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 | 5 | -5 Fe | 4 | -4 H_2O | 4 | 4 H_2S | 1 | 1 FeSO_4 | 4 | 4 Assemble the activity expressions accounting for the state of matter and ν_i: chemical species | c_i | ν_i | activity expression H_2SO_4 | 5 | -5 | ([H2SO4])^(-5) Fe | 4 | -4 | ([Fe])^(-4) H_2O | 4 | 4 | ([H2O])^4 H_2S | 1 | 1 | [H2S] FeSO_4 | 4 | 4 | ([FeSO4])^4 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])^(-5) ([Fe])^(-4) ([H2O])^4 [H2S] ([FeSO4])^4 = (([H2O])^4 [H2S] ([FeSO4])^4)/(([H2SO4])^5 ([Fe])^4)

Rate of reaction

Construct the rate of reaction expression for: H_2SO_4 + Fe ⟶ H_2O + H_2S + FeSO_4 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: 5 H_2SO_4 + 4 Fe ⟶ 4 H_2O + H_2S + 4 FeSO_4 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 | 5 | -5 Fe | 4 | -4 H_2O | 4 | 4 H_2S | 1 | 1 FeSO_4 | 4 | 4 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 | 5 | -5 | -1/5 (Δ[H2SO4])/(Δt) Fe | 4 | -4 | -1/4 (Δ[Fe])/(Δt) H_2O | 4 | 4 | 1/4 (Δ[H2O])/(Δt) H_2S | 1 | 1 | (Δ[H2S])/(Δt) FeSO_4 | 4 | 4 | 1/4 (Δ[FeSO4])/(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 = -1/5 (Δ[H2SO4])/(Δt) = -1/4 (Δ[Fe])/(Δt) = 1/4 (Δ[H2O])/(Δt) = (Δ[H2S])/(Δt) = 1/4 (Δ[FeSO4])/(Δt) (assuming constant volume and no accumulation of intermediates or side products)
Construct the rate of reaction expression for: H_2SO_4 + Fe ⟶ H_2O + H_2S + FeSO_4 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: 5 H_2SO_4 + 4 Fe ⟶ 4 H_2O + H_2S + 4 FeSO_4 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 | 5 | -5 Fe | 4 | -4 H_2O | 4 | 4 H_2S | 1 | 1 FeSO_4 | 4 | 4 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 | 5 | -5 | -1/5 (Δ[H2SO4])/(Δt) Fe | 4 | -4 | -1/4 (Δ[Fe])/(Δt) H_2O | 4 | 4 | 1/4 (Δ[H2O])/(Δt) H_2S | 1 | 1 | (Δ[H2S])/(Δt) FeSO_4 | 4 | 4 | 1/4 (Δ[FeSO4])/(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 = -1/5 (Δ[H2SO4])/(Δt) = -1/4 (Δ[Fe])/(Δt) = 1/4 (Δ[H2O])/(Δt) = (Δ[H2S])/(Δt) = 1/4 (Δ[FeSO4])/(Δt) (assuming constant volume and no accumulation of intermediates or side products)

Chemical names and formulas

| sulfuric acid | iron | water | hydrogen sulfide | duretter formula | H_2SO_4 | Fe | H_2O | H_2S | FeSO_4 Hill formula | H_2O_4S | Fe | H_2O | H_2S | FeO_4S name | sulfuric acid | iron | water | hydrogen sulfide | duretter IUPAC name | sulfuric acid | iron | water | hydrogen sulfide | iron(+2) cation sulfate
| sulfuric acid | iron | water | hydrogen sulfide | duretter formula | H_2SO_4 | Fe | H_2O | H_2S | FeSO_4 Hill formula | H_2O_4S | Fe | H_2O | H_2S | FeO_4S name | sulfuric acid | iron | water | hydrogen sulfide | duretter IUPAC name | sulfuric acid | iron | water | hydrogen sulfide | iron(+2) cation sulfate

Substance properties

| sulfuric acid | iron | water | hydrogen sulfide | duretter molar mass | 98.07 g/mol | 55.845 g/mol | 18.015 g/mol | 34.08 g/mol | 151.9 g/mol phase | liquid (at STP) | solid (at STP) | liquid (at STP) | gas (at STP) | melting point | 10.371 °C | 1535 °C | 0 °C | -85 °C | boiling point | 279.6 °C | 2750 °C | 99.9839 °C | -60 °C | density | 1.8305 g/cm^3 | 7.874 g/cm^3 | 1 g/cm^3 | 0.001393 g/cm^3 (at 25 °C) | 2.841 g/cm^3 solubility in water | very soluble | insoluble | | | surface tension | 0.0735 N/m | | 0.0728 N/m | | dynamic viscosity | 0.021 Pa s (at 25 °C) | | 8.9×10^-4 Pa s (at 25 °C) | 1.239×10^-5 Pa s (at 25 °C) | odor | odorless | | odorless | |
| sulfuric acid | iron | water | hydrogen sulfide | duretter molar mass | 98.07 g/mol | 55.845 g/mol | 18.015 g/mol | 34.08 g/mol | 151.9 g/mol phase | liquid (at STP) | solid (at STP) | liquid (at STP) | gas (at STP) | melting point | 10.371 °C | 1535 °C | 0 °C | -85 °C | boiling point | 279.6 °C | 2750 °C | 99.9839 °C | -60 °C | density | 1.8305 g/cm^3 | 7.874 g/cm^3 | 1 g/cm^3 | 0.001393 g/cm^3 (at 25 °C) | 2.841 g/cm^3 solubility in water | very soluble | insoluble | | | surface tension | 0.0735 N/m | | 0.0728 N/m | | dynamic viscosity | 0.021 Pa s (at 25 °C) | | 8.9×10^-4 Pa s (at 25 °C) | 1.239×10^-5 Pa s (at 25 °C) | odor | odorless | | odorless | |

Units

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