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ZnCl2 + LiOH = Zn(OH)2 + LiCl

Input interpretation

ZnCl_2 zinc chloride + LiOH lithium hydroxide ⟶ Zn(OH)_2 zinc hydroxide + LiCl lithium chloride
ZnCl_2 zinc chloride + LiOH lithium hydroxide ⟶ Zn(OH)_2 zinc hydroxide + LiCl lithium chloride

Balanced equation

Balance the chemical equation algebraically: ZnCl_2 + LiOH ⟶ Zn(OH)_2 + LiCl Add stoichiometric coefficients, c_i, to the reactants and products: c_1 ZnCl_2 + c_2 LiOH ⟶ c_3 Zn(OH)_2 + c_4 LiCl Set the number of atoms in the reactants equal to the number of atoms in the products for Cl, Zn, H, Li and O: Cl: | 2 c_1 = c_4 Zn: | c_1 = c_3 H: | c_2 = 2 c_3 Li: | c_2 = c_4 O: | c_2 = 2 c_3 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_1 = 1 and solve the system of equations for the remaining coefficients: c_1 = 1 c_2 = 2 c_3 = 1 c_4 = 2 Substitute the coefficients into the chemical reaction to obtain the balanced equation: Answer: | | ZnCl_2 + 2 LiOH ⟶ Zn(OH)_2 + 2 LiCl
Balance the chemical equation algebraically: ZnCl_2 + LiOH ⟶ Zn(OH)_2 + LiCl Add stoichiometric coefficients, c_i, to the reactants and products: c_1 ZnCl_2 + c_2 LiOH ⟶ c_3 Zn(OH)_2 + c_4 LiCl Set the number of atoms in the reactants equal to the number of atoms in the products for Cl, Zn, H, Li and O: Cl: | 2 c_1 = c_4 Zn: | c_1 = c_3 H: | c_2 = 2 c_3 Li: | c_2 = c_4 O: | c_2 = 2 c_3 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_1 = 1 and solve the system of equations for the remaining coefficients: c_1 = 1 c_2 = 2 c_3 = 1 c_4 = 2 Substitute the coefficients into the chemical reaction to obtain the balanced equation: Answer: | | ZnCl_2 + 2 LiOH ⟶ Zn(OH)_2 + 2 LiCl

Structures

+ ⟶ +
+ ⟶ +

Names

zinc chloride + lithium hydroxide ⟶ zinc hydroxide + lithium chloride
zinc chloride + lithium hydroxide ⟶ zinc hydroxide + lithium chloride

Equilibrium constant

Construct the equilibrium constant, K, expression for: ZnCl_2 + LiOH ⟶ Zn(OH)_2 + LiCl 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: ZnCl_2 + 2 LiOH ⟶ Zn(OH)_2 + 2 LiCl 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 ZnCl_2 | 1 | -1 LiOH | 2 | -2 Zn(OH)_2 | 1 | 1 LiCl | 2 | 2 Assemble the activity expressions accounting for the state of matter and ν_i: chemical species | c_i | ν_i | activity expression ZnCl_2 | 1 | -1 | ([ZnCl2])^(-1) LiOH | 2 | -2 | ([LiOH])^(-2) Zn(OH)_2 | 1 | 1 | [Zn(OH)2] LiCl | 2 | 2 | ([LiCl])^2 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 = ([ZnCl2])^(-1) ([LiOH])^(-2) [Zn(OH)2] ([LiCl])^2 = ([Zn(OH)2] ([LiCl])^2)/([ZnCl2] ([LiOH])^2)
Construct the equilibrium constant, K, expression for: ZnCl_2 + LiOH ⟶ Zn(OH)_2 + LiCl 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: ZnCl_2 + 2 LiOH ⟶ Zn(OH)_2 + 2 LiCl 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 ZnCl_2 | 1 | -1 LiOH | 2 | -2 Zn(OH)_2 | 1 | 1 LiCl | 2 | 2 Assemble the activity expressions accounting for the state of matter and ν_i: chemical species | c_i | ν_i | activity expression ZnCl_2 | 1 | -1 | ([ZnCl2])^(-1) LiOH | 2 | -2 | ([LiOH])^(-2) Zn(OH)_2 | 1 | 1 | [Zn(OH)2] LiCl | 2 | 2 | ([LiCl])^2 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 = ([ZnCl2])^(-1) ([LiOH])^(-2) [Zn(OH)2] ([LiCl])^2 = ([Zn(OH)2] ([LiCl])^2)/([ZnCl2] ([LiOH])^2)

Rate of reaction

Construct the rate of reaction expression for: ZnCl_2 + LiOH ⟶ Zn(OH)_2 + LiCl 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: ZnCl_2 + 2 LiOH ⟶ Zn(OH)_2 + 2 LiCl 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 ZnCl_2 | 1 | -1 LiOH | 2 | -2 Zn(OH)_2 | 1 | 1 LiCl | 2 | 2 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 ZnCl_2 | 1 | -1 | -(Δ[ZnCl2])/(Δt) LiOH | 2 | -2 | -1/2 (Δ[LiOH])/(Δt) Zn(OH)_2 | 1 | 1 | (Δ[Zn(OH)2])/(Δt) LiCl | 2 | 2 | 1/2 (Δ[LiCl])/(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 = -(Δ[ZnCl2])/(Δt) = -1/2 (Δ[LiOH])/(Δt) = (Δ[Zn(OH)2])/(Δt) = 1/2 (Δ[LiCl])/(Δt) (assuming constant volume and no accumulation of intermediates or side products)
Construct the rate of reaction expression for: ZnCl_2 + LiOH ⟶ Zn(OH)_2 + LiCl 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: ZnCl_2 + 2 LiOH ⟶ Zn(OH)_2 + 2 LiCl 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 ZnCl_2 | 1 | -1 LiOH | 2 | -2 Zn(OH)_2 | 1 | 1 LiCl | 2 | 2 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 ZnCl_2 | 1 | -1 | -(Δ[ZnCl2])/(Δt) LiOH | 2 | -2 | -1/2 (Δ[LiOH])/(Δt) Zn(OH)_2 | 1 | 1 | (Δ[Zn(OH)2])/(Δt) LiCl | 2 | 2 | 1/2 (Δ[LiCl])/(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 = -(Δ[ZnCl2])/(Δt) = -1/2 (Δ[LiOH])/(Δt) = (Δ[Zn(OH)2])/(Δt) = 1/2 (Δ[LiCl])/(Δt) (assuming constant volume and no accumulation of intermediates or side products)

Chemical names and formulas

| zinc chloride | lithium hydroxide | zinc hydroxide | lithium chloride formula | ZnCl_2 | LiOH | Zn(OH)_2 | LiCl Hill formula | Cl_2Zn | HLiO | H_2O_2Zn | ClLi name | zinc chloride | lithium hydroxide | zinc hydroxide | lithium chloride IUPAC name | zinc dichloride | lithium hydroxide | zinc dihydroxide | lithium chloride
| zinc chloride | lithium hydroxide | zinc hydroxide | lithium chloride formula | ZnCl_2 | LiOH | Zn(OH)_2 | LiCl Hill formula | Cl_2Zn | HLiO | H_2O_2Zn | ClLi name | zinc chloride | lithium hydroxide | zinc hydroxide | lithium chloride IUPAC name | zinc dichloride | lithium hydroxide | zinc dihydroxide | lithium chloride

Substance properties

| zinc chloride | lithium hydroxide | zinc hydroxide | lithium chloride molar mass | 136.3 g/mol | 23.95 g/mol | 99.39 g/mol | 42.4 g/mol phase | solid (at STP) | solid (at STP) | | solid (at STP) melting point | 293 °C | 462 °C | | 605 °C boiling point | | | | 1382 °C density | | 1.46 g/cm^3 | | 2.07 g/cm^3 solubility in water | soluble | | | dynamic viscosity | | | | 0.00525 Pa s (at 20 °C) odor | odorless | odorless | |
| zinc chloride | lithium hydroxide | zinc hydroxide | lithium chloride molar mass | 136.3 g/mol | 23.95 g/mol | 99.39 g/mol | 42.4 g/mol phase | solid (at STP) | solid (at STP) | | solid (at STP) melting point | 293 °C | 462 °C | | 605 °C boiling point | | | | 1382 °C density | | 1.46 g/cm^3 | | 2.07 g/cm^3 solubility in water | soluble | | | dynamic viscosity | | | | 0.00525 Pa s (at 20 °C) odor | odorless | odorless | |

Units

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