Input interpretation
![NaOH sodium hydroxide + Zn(NO3)2 ⟶ NaNO_3 sodium nitrate + Zn(OH)_2 zinc hydroxide](../image_source/da0cf5f1cb457888922b8bb45a9f324e.png)
NaOH sodium hydroxide + Zn(NO3)2 ⟶ NaNO_3 sodium nitrate + Zn(OH)_2 zinc hydroxide
Balanced equation
![Balance the chemical equation algebraically: NaOH + Zn(NO3)2 ⟶ NaNO_3 + Zn(OH)_2 Add stoichiometric coefficients, c_i, to the reactants and products: c_1 NaOH + c_2 Zn(NO3)2 ⟶ c_3 NaNO_3 + c_4 Zn(OH)_2 Set the number of atoms in the reactants equal to the number of atoms in the products for H, Na, O, Zn and N: H: | c_1 = 2 c_4 Na: | c_1 = c_3 O: | c_1 + 6 c_2 = 3 c_3 + 2 c_4 Zn: | c_2 = c_4 N: | 2 c_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_2 = 1 and solve the system of equations for the remaining coefficients: c_1 = 2 c_2 = 1 c_3 = 2 c_4 = 1 Substitute the coefficients into the chemical reaction to obtain the balanced equation: Answer: | | 2 NaOH + Zn(NO3)2 ⟶ 2 NaNO_3 + Zn(OH)_2](../image_source/d363c855b0a83307158eec2f8eec6a73.png)
Balance the chemical equation algebraically: NaOH + Zn(NO3)2 ⟶ NaNO_3 + Zn(OH)_2 Add stoichiometric coefficients, c_i, to the reactants and products: c_1 NaOH + c_2 Zn(NO3)2 ⟶ c_3 NaNO_3 + c_4 Zn(OH)_2 Set the number of atoms in the reactants equal to the number of atoms in the products for H, Na, O, Zn and N: H: | c_1 = 2 c_4 Na: | c_1 = c_3 O: | c_1 + 6 c_2 = 3 c_3 + 2 c_4 Zn: | c_2 = c_4 N: | 2 c_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_2 = 1 and solve the system of equations for the remaining coefficients: c_1 = 2 c_2 = 1 c_3 = 2 c_4 = 1 Substitute the coefficients into the chemical reaction to obtain the balanced equation: Answer: | | 2 NaOH + Zn(NO3)2 ⟶ 2 NaNO_3 + Zn(OH)_2
Structures
![+ Zn(NO3)2 ⟶ +](../image_source/46786285dd0996f0fffc7588fb0db40e.png)
+ Zn(NO3)2 ⟶ +
Names
![sodium hydroxide + Zn(NO3)2 ⟶ sodium nitrate + zinc hydroxide](../image_source/9dd149ec81d3e0f7f46e3cb74d397c86.png)
sodium hydroxide + Zn(NO3)2 ⟶ sodium nitrate + zinc hydroxide
Equilibrium constant
![Construct the equilibrium constant, K, expression for: NaOH + Zn(NO3)2 ⟶ NaNO_3 + Zn(OH)_2 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: 2 NaOH + Zn(NO3)2 ⟶ 2 NaNO_3 + Zn(OH)_2 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 NaOH | 2 | -2 Zn(NO3)2 | 1 | -1 NaNO_3 | 2 | 2 Zn(OH)_2 | 1 | 1 Assemble the activity expressions accounting for the state of matter and ν_i: chemical species | c_i | ν_i | activity expression NaOH | 2 | -2 | ([NaOH])^(-2) Zn(NO3)2 | 1 | -1 | ([Zn(NO3)2])^(-1) NaNO_3 | 2 | 2 | ([NaNO3])^2 Zn(OH)_2 | 1 | 1 | [Zn(OH)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 = ([NaOH])^(-2) ([Zn(NO3)2])^(-1) ([NaNO3])^2 [Zn(OH)2] = (([NaNO3])^2 [Zn(OH)2])/(([NaOH])^2 [Zn(NO3)2])](../image_source/eb91ce78a6201ab0a8d0bc8ba2f7338d.png)
Construct the equilibrium constant, K, expression for: NaOH + Zn(NO3)2 ⟶ NaNO_3 + Zn(OH)_2 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: 2 NaOH + Zn(NO3)2 ⟶ 2 NaNO_3 + Zn(OH)_2 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 NaOH | 2 | -2 Zn(NO3)2 | 1 | -1 NaNO_3 | 2 | 2 Zn(OH)_2 | 1 | 1 Assemble the activity expressions accounting for the state of matter and ν_i: chemical species | c_i | ν_i | activity expression NaOH | 2 | -2 | ([NaOH])^(-2) Zn(NO3)2 | 1 | -1 | ([Zn(NO3)2])^(-1) NaNO_3 | 2 | 2 | ([NaNO3])^2 Zn(OH)_2 | 1 | 1 | [Zn(OH)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 = ([NaOH])^(-2) ([Zn(NO3)2])^(-1) ([NaNO3])^2 [Zn(OH)2] = (([NaNO3])^2 [Zn(OH)2])/(([NaOH])^2 [Zn(NO3)2])
Rate of reaction
![Construct the rate of reaction expression for: NaOH + Zn(NO3)2 ⟶ NaNO_3 + Zn(OH)_2 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: 2 NaOH + Zn(NO3)2 ⟶ 2 NaNO_3 + Zn(OH)_2 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 NaOH | 2 | -2 Zn(NO3)2 | 1 | -1 NaNO_3 | 2 | 2 Zn(OH)_2 | 1 | 1 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 NaOH | 2 | -2 | -1/2 (Δ[NaOH])/(Δt) Zn(NO3)2 | 1 | -1 | -(Δ[Zn(NO3)2])/(Δt) NaNO_3 | 2 | 2 | 1/2 (Δ[NaNO3])/(Δt) Zn(OH)_2 | 1 | 1 | (Δ[Zn(OH)2])/(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 = -1/2 (Δ[NaOH])/(Δt) = -(Δ[Zn(NO3)2])/(Δt) = 1/2 (Δ[NaNO3])/(Δt) = (Δ[Zn(OH)2])/(Δt) (assuming constant volume and no accumulation of intermediates or side products)](../image_source/c9f28f153887198f8e5bc7bd41c0c886.png)
Construct the rate of reaction expression for: NaOH + Zn(NO3)2 ⟶ NaNO_3 + Zn(OH)_2 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: 2 NaOH + Zn(NO3)2 ⟶ 2 NaNO_3 + Zn(OH)_2 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 NaOH | 2 | -2 Zn(NO3)2 | 1 | -1 NaNO_3 | 2 | 2 Zn(OH)_2 | 1 | 1 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 NaOH | 2 | -2 | -1/2 (Δ[NaOH])/(Δt) Zn(NO3)2 | 1 | -1 | -(Δ[Zn(NO3)2])/(Δt) NaNO_3 | 2 | 2 | 1/2 (Δ[NaNO3])/(Δt) Zn(OH)_2 | 1 | 1 | (Δ[Zn(OH)2])/(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 = -1/2 (Δ[NaOH])/(Δt) = -(Δ[Zn(NO3)2])/(Δt) = 1/2 (Δ[NaNO3])/(Δt) = (Δ[Zn(OH)2])/(Δt) (assuming constant volume and no accumulation of intermediates or side products)
Chemical names and formulas
![| sodium hydroxide | Zn(NO3)2 | sodium nitrate | zinc hydroxide formula | NaOH | Zn(NO3)2 | NaNO_3 | Zn(OH)_2 Hill formula | HNaO | N2O6Zn | NNaO_3 | H_2O_2Zn name | sodium hydroxide | | sodium nitrate | zinc hydroxide IUPAC name | sodium hydroxide | | sodium nitrate | zinc dihydroxide](../image_source/ca697b36cf68358b3b058290d7507dc9.png)
| sodium hydroxide | Zn(NO3)2 | sodium nitrate | zinc hydroxide formula | NaOH | Zn(NO3)2 | NaNO_3 | Zn(OH)_2 Hill formula | HNaO | N2O6Zn | NNaO_3 | H_2O_2Zn name | sodium hydroxide | | sodium nitrate | zinc hydroxide IUPAC name | sodium hydroxide | | sodium nitrate | zinc dihydroxide
Substance properties
![| sodium hydroxide | Zn(NO3)2 | sodium nitrate | zinc hydroxide molar mass | 39.997 g/mol | 189.4 g/mol | 84.994 g/mol | 99.39 g/mol phase | solid (at STP) | | solid (at STP) | melting point | 323 °C | | 306 °C | boiling point | 1390 °C | | | density | 2.13 g/cm^3 | | 2.26 g/cm^3 | solubility in water | soluble | | soluble | surface tension | 0.07435 N/m | | | dynamic viscosity | 0.004 Pa s (at 350 °C) | | 0.003 Pa s (at 250 °C) |](../image_source/afa2b6acf4bada3122300c5204f04c97.png)
| sodium hydroxide | Zn(NO3)2 | sodium nitrate | zinc hydroxide molar mass | 39.997 g/mol | 189.4 g/mol | 84.994 g/mol | 99.39 g/mol phase | solid (at STP) | | solid (at STP) | melting point | 323 °C | | 306 °C | boiling point | 1390 °C | | | density | 2.13 g/cm^3 | | 2.26 g/cm^3 | solubility in water | soluble | | soluble | surface tension | 0.07435 N/m | | | dynamic viscosity | 0.004 Pa s (at 350 °C) | | 0.003 Pa s (at 250 °C) |
Units